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/modules/videoio/cmake/detect_ueye.cmake

@@ -0,0 +1,23 @@
+if(NOT HAVE_UEYE)
+  if(WIN32)
+    if(X86_64)
+      set(_WIN_LIB_SUFFIX "_64")
+    endif()
+  endif()
+  find_path(UEYE_INCLUDE "ueye.h"
+    PATHS "${UEYE_ROOT}" ENV UEYE_ROOT "/usr" "C:/Program Files/IDS/uEye/Develop"
+    HINTS "${regpath}"
+    PATH_SUFFIXES "include")
+  find_library(UEYE_LIBRARY ueye_api${_WIN_LIB_SUFFIX}
+    PATHS "${UEYE_ROOT}" ENV UEYE_ROOT "/usr" "C:/Program Files/IDS/uEye/Develop"
+    HINTS "${regpath}"
+    PATH_SUFFIXES "lib")
+  if(UEYE_INCLUDE AND UEYE_LIBRARY)
+    set(HAVE_UEYE TRUE)
+  endif()
+endif()
+unset(_WIN_LIB_SUFFIX)
+
+if(HAVE_UEYE)
+  ocv_add_external_target(ueye "${UEYE_INCLUDE}" "${UEYE_LIBRARY}" "HAVE_UEYE")
+endif()