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/winrt/ImageManipulations/MediaExtensions/OcvTransform/dllmain.cpp

@@ -0,0 +1,58 @@
+//////////////////////////////////////////////////////////////////////////
+//
+// dllmain.cpp
+//
+// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
+// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
+// PARTICULAR PURPOSE.
+//
+// Copyright (c) Microsoft Corporation. All rights reserved.
+//
+//////////////////////////////////////////////////////////////////////////
+
+#include <initguid.h>
+#include "OcvTransform.h"
+
+using namespace Microsoft::WRL;
+
+namespace Microsoft { namespace Samples {
+    ActivatableClass(OcvImageManipulations);
+}}
+
+BOOL WINAPI DllMain( _In_ HINSTANCE hInstance, _In_ DWORD dwReason, _In_opt_ LPVOID lpReserved )
+{
+    if( DLL_PROCESS_ATTACH == dwReason )
+    {
+        //
+        //  Don't need per-thread callbacks
+        //
+        DisableThreadLibraryCalls( hInstance );
+
+        Module<InProc>::GetModule().Create();
+    }
+    else if( DLL_PROCESS_DETACH == dwReason )
+    {
+        Module<InProc>::GetModule().Terminate();
+    }
+
+    return TRUE;
+}
+
+HRESULT WINAPI DllGetActivationFactory( _In_ HSTRING activatibleClassId, _Outptr_ IActivationFactory** factory )
+{
+    auto &module = Microsoft::WRL::Module< Microsoft::WRL::InProc >::GetModule();
+    return module.GetActivationFactory( activatibleClassId, factory );
+}
+
+HRESULT WINAPI DllCanUnloadNow()
+{
+    auto &module = Microsoft::WRL::Module<Microsoft::WRL::InProc>::GetModule();
+    return (module.Terminate()) ? S_OK : S_FALSE;
+}
+
+STDAPI DllGetClassObject( _In_ REFCLSID rclsid, _In_ REFIID riid, _Outptr_ LPVOID FAR* ppv )
+{
+    auto &module = Microsoft::WRL::Module<Microsoft::WRL::InProc>::GetModule();
+    return module.GetClassObject( rclsid, riid, ppv );
+}