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/MainPage.xaml.h

@@ -0,0 +1,105 @@
+//*********************************************************
+//
+// Copyright (c) Microsoft. All rights reserved.
+// THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
+// ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
+// IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
+// PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
+//
+//*********************************************************
+
+//
+// MainPage.xaml.h
+// Declaration of the MainPage.xaml class.
+//
+
+#pragma once
+
+#include "pch.h"
+#include "MainPage.g.h"
+#include "Common\LayoutAwarePage.h" // Required by generated header
+#include "Constants.h"
+
+namespace SDKSample
+{
+    public enum class NotifyType
+    {
+        StatusMessage,
+        ErrorMessage
+    };
+
+    public ref class MainPageSizeChangedEventArgs sealed
+    {
+    public:
+        property Windows::UI::ViewManagement::ApplicationViewState ViewState
+        {
+            Windows::UI::ViewManagement::ApplicationViewState get()
+            {
+                return viewState;
+            }
+
+            void set(Windows::UI::ViewManagement::ApplicationViewState value)
+            {
+                viewState = value;
+            }
+        }
+
+    private:
+        Windows::UI::ViewManagement::ApplicationViewState viewState;
+    };
+
+    public ref class MainPage sealed
+    {
+    public:
+        MainPage();
+
+    protected:
+        virtual void LoadState(Platform::Object^ navigationParameter,
+            Windows::Foundation::Collections::IMap<Platform::String^, Platform::Object^>^ pageState) override;
+        virtual void SaveState(Windows::Foundation::Collections::IMap<Platform::String^, Platform::Object^>^ pageState) override;
+
+    internal:
+        property bool AutoSizeInputSectionWhenSnapped
+        {
+            bool get()
+            {
+                return autoSizeInputSectionWhenSnapped;
+            }
+
+            void set(bool value)
+            {
+                autoSizeInputSectionWhenSnapped = value;
+            }
+        }
+
+        property Windows::ApplicationModel::Activation::LaunchActivatedEventArgs^ LaunchArgs
+       {
+            Windows::ApplicationModel::Activation::LaunchActivatedEventArgs^ get()
+            {
+                return safe_cast<App^>(App::Current)->LaunchArgs;
+            }
+        }
+
+        void NotifyUser(Platform::String^ strMessage, NotifyType type);
+        void LoadScenario(Platform::String^ scenarioName);
+        event Windows::Foundation::EventHandler<Platform::Object^>^ ScenarioLoaded;
+        event Windows::Foundation::EventHandler<MainPageSizeChangedEventArgs^>^ MainPageResized;
+
+    private:
+        void PopulateScenarios();
+        void InvalidateSize();
+        void InvalidateViewState();
+
+        Platform::Collections::Vector<Object^>^ ScenarioList;
+        Windows::UI::Xaml::Controls::Frame^ HiddenFrame;
+        void Footer_Click(Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
+        bool autoSizeInputSectionWhenSnapped;
+
+        void MainPage_SizeChanged(Object^ sender, Windows::UI::Xaml::SizeChangedEventArgs^ e);
+        void Scenarios_SelectionChanged(Object^ sender, Windows::UI::Xaml::Controls::SelectionChangedEventArgs^ e);
+
+    internal:
+        static MainPage^ Current;
+
+    };
+}