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/video/misc/java/test/VideoTest.java

@@ -0,0 +1,99 @@
+package org.opencv.test.video;
+
+import org.opencv.core.Core;
+import org.opencv.core.Mat;
+import org.opencv.core.MatOfByte;
+import org.opencv.core.MatOfFloat;
+import org.opencv.core.MatOfPoint2f;
+import org.opencv.core.Point;
+import org.opencv.core.Size;
+import org.opencv.test.OpenCVTestCase;
+import org.opencv.video.Video;
+
+public class VideoTest extends OpenCVTestCase {
+
+    private MatOfFloat err = null;
+    private int h;
+    private MatOfPoint2f nextPts = null;
+    private MatOfPoint2f prevPts = null;
+
+    private int shift1;
+    private int shift2;
+
+    private MatOfByte status = null;
+    private Mat subLena1 = null;
+    private Mat subLena2 = null;
+    private int w;
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        shift1 = 10;
+        shift2 = 17;
+        w = (int)(rgbLena.cols() / 2);
+        h = (int)(rgbLena.rows() / 2);
+
+        subLena1 = rgbLena.submat(shift1, h + shift1, shift1, w + shift1);
+        subLena2 = rgbLena.submat(shift2, h + shift2, shift2, w + shift2);
+
+        prevPts = new MatOfPoint2f(new Point(11d, 8d), new Point(5d, 5d), new Point(10d, 10d));
+
+        nextPts = new MatOfPoint2f();
+        status = new MatOfByte();
+        err = new MatOfFloat();
+    }
+
+    public void testCalcGlobalOrientation() {
+        fail("Not yet implemented");
+    }
+
+    public void testCalcMotionGradientMatMatMatDoubleDouble() {
+        fail("Not yet implemented");
+    }
+
+    public void testCalcMotionGradientMatMatMatDoubleDoubleInt() {
+        fail("Not yet implemented");
+    }
+
+    public void testCalcOpticalFlowFarneback() {
+        fail("Not yet implemented");
+    }
+
+    public void testCalcOpticalFlowPyrLKMatMatListOfPointListOfPointListOfByteListOfFloat() {
+        Video.calcOpticalFlowPyrLK(subLena1, subLena2, prevPts, nextPts, status, err);
+        assertEquals(3, Core.countNonZero(status));
+    }
+
+    public void testCalcOpticalFlowPyrLKMatMatListOfPointListOfPointListOfByteListOfFloatSize() {
+        Size sz = new Size(3, 3);
+        Video.calcOpticalFlowPyrLK(subLena1, subLena2, prevPts, nextPts, status, err, sz, 3);
+        assertEquals(0, Core.countNonZero(status));
+    }
+
+
+    public void testCalcOpticalFlowPyrLKMatMatListOfPointListOfPointListOfByteListOfFloatSizeIntTermCriteriaDoubleIntDouble() {
+        fail("Not yet implemented");
+    }
+
+    public void testCamShift() {
+        fail("Not yet implemented");
+    }
+
+    public void testEstimateRigidTransform() {
+        fail("Not yet implemented");
+    }
+
+    public void testMeanShift() {
+        fail("Not yet implemented");
+    }
+
+    public void testSegmentMotion() {
+        fail("Not yet implemented");
+    }
+
+    public void testUpdateMotionHistory() {
+        fail("Not yet implemented");
+    }
+
+}