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/samples/android/camera-calibration/res/menu/calibration.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android" >
+    <group android:checkableBehavior="single">
+        <item android:id="@+id/calibrate"
+              android:title="@string/action_calibrate"
+              android:showAsAction="ifRoom|withText" />
+        <item android:id="@+id/preview_mode"
+              android:title="@string/preview_mode">
+              <menu>
+                  <group android:checkableBehavior="single">
+                      <item android:id="@+id/calibration"
+                            android:title="@string/calibration"
+                            android:checked="true" />
+                      <item android:id="@+id/undistortion"
+                            android:title="@string/undistortion" />
+                      <item android:id="@+id/comparison"
+                            android:title="@string/comparison" />
+                  </group>
+              </menu>
+        </item>
+    </group>
+</menu>