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/face-detection/jni/DetectionBasedTracker_jni.h

@@ -0,0 +1,61 @@
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class org_opencv_samples_fd_DetectionBasedTracker */
+
+#ifndef _Included_org_opencv_samples_fd_DetectionBasedTracker
+#define _Included_org_opencv_samples_fd_DetectionBasedTracker
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     org_opencv_samples_fd_DetectionBasedTracker
+ * Method:    nativeCreateObject
+ * Signature: (Ljava/lang/String;F)J
+ */
+JNIEXPORT jlong JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker_nativeCreateObject
+  (JNIEnv *, jclass, jstring, jint);
+
+/*
+ * Class:     org_opencv_samples_fd_DetectionBasedTracker
+ * Method:    nativeDestroyObject
+ * Signature: (J)V
+ */
+JNIEXPORT void JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker_nativeDestroyObject
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_opencv_samples_fd_DetectionBasedTracker
+ * Method:    nativeStart
+ * Signature: (J)V
+ */
+JNIEXPORT void JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker_nativeStart
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     org_opencv_samples_fd_DetectionBasedTracker
+ * Method:    nativeStop
+ * Signature: (J)V
+ */
+JNIEXPORT void JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker_nativeStop
+  (JNIEnv *, jclass, jlong);
+
+  /*
+   * Class:     org_opencv_samples_fd_DetectionBasedTracker
+   * Method:    nativeSetFaceSize
+   * Signature: (JI)V
+   */
+  JNIEXPORT void JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker_nativeSetFaceSize
+  (JNIEnv *, jclass, jlong, jint);
+
+/*
+ * Class:     org_opencv_samples_fd_DetectionBasedTracker
+ * Method:    nativeDetect
+ * Signature: (JJJ)V
+ */
+JNIEXPORT void JNICALL Java_org_opencv_samples_facedetect_DetectionBasedTracker_nativeDetect
+  (JNIEnv *, jclass, jlong, jlong, jlong);
+
+#ifdef __cplusplus
+}
+#endif
+#endif