feat: 切换后端至PaddleOCR-NCNN，切换工程为CMake

1.项目后端整体迁移至PaddleOCR-NCNN算法，已通过基本的兼容性测试
2.工程改为使用CMake组织，后续为了更好地兼容第三方库，不再提供QMake工程
3.重整权利声明文件，重整代码工程，确保最小化侵权风险

Log: 切换后端至PaddleOCR-NCNN，切换工程为CMake
Change-Id: I4d5d2c5d37505a4a24b389b1a4c5d12f17bfa38c

3rdparty/opencv-4.5.4/platforms/maven/opencv/scripts/deb_package_check

@@ -0,0 +1,102 @@
+#!/bin/bash
+##################################################################################################
+#
+# 		This script checks for the required Debian packages are installed
+# 		to build OpenCV.
+# Commandline parameters:
+# $@                These are the names of the packages to check with 'dpkg'. Multiple values may
+#         be specified per package by using pipe as a delimiter, e.g. libpng-dev|libpng12-dev.
+#         Multiple values are evaluated left-to-right and the first found prevents checking of
+#         the remaining package options.
+#
+# -o <package_name> Specifying this switch with a package name marks it as optional
+#                   i.e. it is not required to be installed.
+#
+# Returns:
+#   0 - All packages installed (success)
+#   1 - One or more packages missing (failure)
+#
+#   Kerry Billingham <contact (at) avionicengineers (d0t) com>
+#   20 April 2016
+#
+##################################################################################################
+red=$'\e[1;31m'
+green=$'\e[1;32m'
+yellow=$'\e[1;33m'
+end=$'\e[0m'
+check_message="Checking for "
+declare -i packageMissing=0
+declare -i installed=1
+
+#########################
+# Function declarations.
+#########################
+function check_package() {
+     check_message="Checking for package "
+     dpkg -s $1 &>/dev/null
+     is_installed=$?
+     if [ ${is_installed} -ne 0 ]; then
+          printf "%-80s%s\n" "$2${check_message}${red}$1" " MISSING.${end}"
+          packageMissing=1
+     else
+          printf "%-80s%s\n" "$2${check_message}${green}$1" " INSTALLED.${end}"
+          packageMissing=0
+     fi
+     return $is_installed
+}
+
+# Main part of script.
+ORIGINAL_IFS=$IFS
+
+dpkg -? &>/dev/null
+if [ $? -ne 0 ]; then
+    printf "%-80s%s\n" "${check_message} ${red}'dpkg'" " MISSING.${end}"
+    exit 1
+else
+    printf "%-80s%s\n" "${check_message} ${green}'dpkg'" " INSTALLED.${end}"
+fi
+
+while getopts o: option; do
+    case $option in
+        o)
+            IFS="|"
+            packageChoices=( ${OPTARG} )
+            if [ ${#packageChoices[@]} -gt 1 ]; then
+                echo "Optional package. One of ${yellow}${packageChoices[@]}${end} can be installed."
+                for choice in ${packageChoices[@]}; do
+                    check_package ${choice} "    "
+                    if [ $? -eq 0 ]; then
+                        break
+                    fi
+                done
+            else
+                echo "Optional package ${yellow}${packageChoices}${end}"
+                check_package ${OPTARG} "    "
+            fi
+            IFS=$ORIGINAL_IFS
+            ;;
+        \?)
+            echo "No option found"
+            ;;
+    esac
+done
+
+shift $((OPTIND-1))
+packageArray=( $@ )
+for package in ${packageArray[@]}; do
+    IFS="|"
+    packageChoices=( ${package} )
+    if [ ${#packageChoices[@]} -gt 1 ]; then
+        echo "Multiple options. One of ${yellow}${packageChoices[@]}${end} must be installed."
+        for choice in ${packageChoices[@]}; do
+            check_package ${choice} "    "
+            if [ $? -eq 0 ]; then
+                break
+            fi
+        done
+    else
+        check_package ${package} ""
+    fi
+done
+
+exit $packageMissing

3rdparty/opencv-4.5.4/platforms/maven/opencv/scripts/execstack_check

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+##################################################################
+#
+#	This script will clear the executable flag on
+#	the specified library and then check it has
+#	been cleared as a separate operation.
+#
+#	$1 - The absolute path to the OpenCV native library.
+#
+#	Returns:
+#	0 - The executable flag has been cleared
+#	1 - The executable flag could NOT be cleared (failure).
+#
+#   Kerry Billingham <contact (at) avionicengineers (d0t) com>
+#   11 March 2017
+#
+##################################################################
+red=$'\e[1;31m'
+green=$'\e[1;32m'
+end=$'\e[0m'
+echo "${green}[INFO] Checking that the native library executable stack flag is NOT set.${end}"
+BINARY=execstack
+$BINARY --help > /dev/null || BINARY=/usr/sbin/execstack
+$BINARY -c $1
+$BINARY -q $1 | grep -o ^-
+if [ $? -ne 0 ]; then
+    echo
+    echo "${red}[ERROR] The Executable Flag could not be cleared on the library $1.${end}"
+    exit 1
+fi
+exit 0

3rdparty/opencv-4.5.4/platforms/maven/opencv/scripts/functions

@@ -0,0 +1,21 @@
+#!/bin/bash
+###############################################################
+#
+# Defines some common functions.
+#
+# Kerry Billingham <contact [At] AvionicEngineers.{com]>
+#
+##############################################################
+majorHashDefine="#define CV_VERSION_MAJOR"
+minorHashDefine="#define CV_VERSION_MINOR"
+revisionHashDefine="#define CV_VERSION_REVISION"
+statusHashDefine="#define CV_VERSION_STATUS"
+versionHeader="../../../../modules/core/include/opencv2/core/version.hpp"
+
+function extract_version() {
+    minorVersion=$(grep "${minorHashDefine}" $versionHeader | grep -o ".$")
+    majorVersion=$(grep "${majorHashDefine}" $versionHeader | grep -o ".$")
+    revision=$(grep "${revisionHashDefine}" $versionHeader | grep -o ".$")
+
+    REPLY="${majorVersion}.${minorVersion}.${revision}"
+}

3rdparty/opencv-4.5.4/platforms/maven/opencv/scripts/properties

@@ -0,0 +1,86 @@
+#!/bin/bash
+#####################################################################
+# This script extracts several properties and then writes them to a
+# to a file, 'build.properties'. These properties include:
+#
+#	1. OpenCV version.
+#	2. OpenVC version as a string for use by Maven.
+#	3. The CPU binary word size.
+#	4. Architecture string.
+#	4. OSGi compatible CPU architecture string.
+#
+# There is no need to execute this script directly as it will be
+# called during the Maven build process.
+#
+# Command-line parameters:
+#   $1 - The build directory and where the output file will be written
+#   $2 - The name of the output file to write to.
+#
+# Returns:
+#   0 - Successfully written the properties file.
+#   1 - Error occurred such as build directory does not exist
+#	or OpenCV version could not be determined or an
+#	unexpected error.
+#
+#   Kerry Billingham <contact (at) avionicengineers (d0t) com>
+#   20 April 2016
+#
+#####################################################################
+
+# Include some external functions and variables
+. ./functions
+
+#Test build directory exists
+if [  ! -n "$1" ] || [ ! -d $1 ];then
+    echo "Build directory not specified or does not exist!"
+    exit 1
+fi
+
+if [ -n "${versionHeader}" ] && [ -e ${versionHeader} ];then
+
+    extract_version
+
+    bits=$(getconf LONG_BIT)
+    architecture=$(arch)
+    osgiProcessor="Not Set"
+
+    case ${architecture} in
+        x86*)
+            echo "This is x86 (32 | 64) bit"
+            case ${bits} in
+                32)
+                    osgiProcessor="x86"
+                    ;;
+                64)
+                    osgiProcessor="x86_64"
+                    ;;
+                *)
+                    osgiProcessor="Unknown"
+            esac
+            ;;
+        arm*)
+            echo "This is ARM"
+            byteOrder=$(lscpu | grep -i "byte order")
+            shopt -s nocasematch
+            if [[ "${byteOrder}" == *little* ]]; then
+                osgiProcessor="arm_le"
+            elif [[ "${byteOrder}}" == *big* ]]; then
+                osgiProcessor="arm_be"
+            fi
+            shopt -u nocasematch
+            ;;
+        *)
+            echo "This is unknown architecture"
+        esac
+
+    echo "The version number will be ${majorVersion}.${minorVersion}.${revision}"
+    echo "opencv.version=${majorVersion}.${minorVersion}.${revision}" > ${1}/${2}
+    echo "lib.version.string=${majorVersion}${minorVersion}${revision}" >> ${1}/${2}
+    echo "bits=${bits}" >> ${1}/${2}
+    echo "architecture=$(arch)" >> ${1}/${2}
+    echo "osgi.processor=${osgiProcessor}" >> ${1}/${2}
+    exit 0
+else
+    echo "Could not locate file ${versionHeader} to determine versioning."
+    exit 1
+fi