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/Common/OpQueue.h

@@ -0,0 +1,222 @@
+//////////////////////////////////////////////////////////////////////////
+//
+// OpQueue.h
+// Async operation queue.
+//
+// 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.
+//
+//////////////////////////////////////////////////////////////////////////
+
+#pragma once
+
+#pragma warning( push )
+#pragma warning( disable : 4355 )  // 'this' used in base member initializer list
+
+/*
+    This header file defines an object to help queue and serialize
+    asynchronous operations.
+
+    Background:
+
+    To perform an operation asynchronously in Media Foundation, an object
+    does one of the following:
+
+        1. Calls MFPutWorkItem(Ex), using either a standard work queue
+           identifier or a caller-allocated work queue. The work-queue
+           thread invokes the object's callback.
+
+        2. Creates an async result object (IMFAsyncResult) and calls
+           MFInvokeCallback to invoke the object's callback.
+
+    Ultimately, either of these cause the object's callback to be invoked
+    from a work-queue thread. The object can then complete the operation
+    inside the callback.
+
+    However, the Media Foundation platform may dispatch async callbacks in
+    parallel on several threads. Putting an item on a work queue does NOT
+    guarantee that one operation will complete before the next one starts,
+    or even that work items will be dispatched in the same order they were
+    called.
+
+    To serialize async operations that should not overlap, an object should
+    use a queue. While one operation is pending, subsequent operations are
+    put on the queue, and only dispatched after the previous operation is
+    complete.
+
+    The granularity of a single "operation" depends on the requirements of
+    that particular object. A single operation might involve several
+    asynchronous calls before the object dispatches the next operation on
+    the queue.
+
+
+*/
+
+
+
+//-------------------------------------------------------------------
+// OpQueue class template
+//
+// Base class for an async operation queue.
+//
+// TOperation: The class used to describe operations. This class must
+//          implement IUnknown.
+//
+// The OpQueue class is an abstract class. The derived class must
+// implement the following pure-virtual methods:
+//
+// - IUnknown methods (AddRef, Release, QI)
+//
+// - DispatchOperation:
+//
+//      Performs the asynchronous operation specified by pOp.
+//
+//      At the end of each operation, the derived class must call
+//      ProcessQueue to process the next operation in the queue.
+//
+//      NOTE: An operation is not required to complete inside the
+//      DispatchOperation method. A single operation might consist
+//      of several asynchronous method calls.
+//
+// - ValidateOperation:
+//
+//      Checks whether the object can perform the operation specified
+//      by pOp at this time.
+//
+//      If the object cannot perform the operation now (e.g., because
+//      another operation is still in progress) the method should
+//      return MF_E_NOTACCEPTING.
+//
+//-------------------------------------------------------------------
+#include "linklist.h"
+#include "AsyncCB.h"
+
+template <class T, class TOperation>
+class OpQueue //: public IUnknown
+{
+public:
+
+    typedef ComPtrList<TOperation>   OpList;
+
+    HRESULT QueueOperation(TOperation *pOp);
+
+protected:
+
+    HRESULT ProcessQueue();
+    HRESULT ProcessQueueAsync(IMFAsyncResult *pResult);
+
+    virtual HRESULT DispatchOperation(TOperation *pOp) = 0;
+    virtual HRESULT ValidateOperation(TOperation *pOp) = 0;
+
+    OpQueue(CRITICAL_SECTION& critsec)
+        : m_OnProcessQueue(static_cast<T *>(this), &OpQueue::ProcessQueueAsync),
+          m_critsec(critsec)
+    {
+    }
+
+    virtual ~OpQueue()
+    {
+    }
+
+protected:
+    OpList                  m_OpQueue;         // Queue of operations.
+    CRITICAL_SECTION&       m_critsec;         // Protects the queue state.
+    AsyncCallback<T>  m_OnProcessQueue;  // ProcessQueueAsync callback.
+};
+
+
+
+//-------------------------------------------------------------------
+// Place an operation on the queue.
+// Public method.
+//-------------------------------------------------------------------
+
+template <class T, class TOperation>
+HRESULT OpQueue<T, TOperation>::QueueOperation(TOperation *pOp)
+{
+    HRESULT hr = S_OK;
+
+    EnterCriticalSection(&m_critsec);
+
+    hr = m_OpQueue.InsertBack(pOp);
+    if (SUCCEEDED(hr))
+    {
+        hr = ProcessQueue();
+    }
+
+    LeaveCriticalSection(&m_critsec);
+    return hr;
+}
+
+
+//-------------------------------------------------------------------
+// Process the next operation on the queue.
+// Protected method.
+//
+// Note: This method dispatches the operation to a work queue.
+//-------------------------------------------------------------------
+
+template <class T, class TOperation>
+HRESULT OpQueue<T, TOperation>::ProcessQueue()
+{
+    HRESULT hr = S_OK;
+    if (m_OpQueue.GetCount() > 0)
+    {
+        hr = MFPutWorkItem2(
+            MFASYNC_CALLBACK_QUEUE_STANDARD,    // Use the standard work queue.
+            0,                                  // Default priority
+            &m_OnProcessQueue,                  // Callback method.
+            nullptr                             // State object.
+            );
+    }
+    return hr;
+}
+
+
+//-------------------------------------------------------------------
+// Process the next operation on the queue.
+// Protected method.
+//
+// Note: This method is called from a work-queue thread.
+//-------------------------------------------------------------------
+
+template <class T, class TOperation>
+HRESULT OpQueue<T, TOperation>::ProcessQueueAsync(IMFAsyncResult *pResult)
+{
+    HRESULT hr = S_OK;
+    TOperation *pOp = nullptr;
+
+    EnterCriticalSection(&m_critsec);
+
+    if (m_OpQueue.GetCount() > 0)
+    {
+        hr = m_OpQueue.GetFront(&pOp);
+
+        if (SUCCEEDED(hr))
+        {
+            hr = ValidateOperation(pOp);
+        }
+        if (SUCCEEDED(hr))
+        {
+            hr = m_OpQueue.RemoveFront(nullptr);
+        }
+        if (SUCCEEDED(hr))
+        {
+            (void)DispatchOperation(pOp);
+        }
+    }
+
+    if (pOp != nullptr)
+    {
+        pOp->Release();
+    }
+
+    LeaveCriticalSection(&m_critsec);
+    return hr;
+}
+
+#pragma warning( pop )