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/calib3d/misc/java/test/StereoBMTest.java

@@ -0,0 +1,31 @@
+package org.opencv.test.calib3d;
+
+import org.opencv.test.OpenCVTestCase;
+
+public class StereoBMTest extends OpenCVTestCase {
+
+    public void testComputeMatMatMat() {
+        fail("Not yet implemented");
+    }
+
+    public void testComputeMatMatMatInt() {
+        fail("Not yet implemented");
+    }
+
+    public void testStereoBM() {
+        fail("Not yet implemented");
+    }
+
+    public void testStereoBMInt() {
+        fail("Not yet implemented");
+    }
+
+    public void testStereoBMIntInt() {
+        fail("Not yet implemented");
+    }
+
+    public void testStereoBMIntIntInt() {
+        fail("Not yet implemented");
+    }
+
+}