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/ts/misc/concatlogs.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python
+
+from optparse import OptionParser
+import glob, sys, os, re
+
+if __name__ == "__main__":
+    parser = OptionParser()
+    parser.add_option("-o", "--output", dest="output", help="output file name", metavar="FILENAME", default=None)
+    (options, args) = parser.parse_args()
+
+    if not options.output:
+        sys.stderr.write("Error: output file name is not provided")
+        exit(-1)
+
+    files = []
+    for arg in args:
+        if ("*" in arg) or ("?" in arg):
+            files.extend([os.path.abspath(f) for f in glob.glob(arg)])
+        else:
+            files.append(os.path.abspath(arg))
+
+    html = None
+    for f in sorted(files):
+        try:
+            fobj = open(f)
+            if not fobj:
+                continue
+            text = fobj.read()
+            if not html:
+                html = text
+                continue
+            idx1 = text.find("<tbody>") + len("<tbody>")
+            idx2 = html.rfind("</tbody>")
+            html = html[:idx2] + re.sub(r"[ \t\n\r]+", " ", text[idx1:])
+        except:
+            pass
+
+    if html:
+        idx1 = text.find("<title>") + len("<title>")
+        idx2 = html.find("</title>")
+        html = html[:idx1] + "OpenCV performance testing report" + html[idx2:]
+        open(options.output, "w").write(html)
+    else:
+        sys.stderr.write("Error: no input data")
+        exit(-1)