0027350: Support for Universal Windows Platform

- Toolchain file to configure a Visual Studio generator for a Windows 10 Universal Application was added (CMake).
- There is no support for environment variables in UWP.
- SID is not supported (were excluded).
- Windows registry is not supported (were excluded).
- Mess with usage of Unicode/ANSI was corrected.
- Added sample to check UWP functionality.
- Excluded usage of methods with Unicode characters where it is possible.
- Minor corrections to allow building OCAF (except TKVCAF) and DE (except VRML and XDE)
- Building of unsupported modules for UWP platform is off by default .
- Checking of DataExchange functionality was added to XAML (UWP) sample.
- Added information about UWP to the documentation.
- Update of results of merge with issue 27801

samples/xaml/App.xaml.h

@@ -0,0 +1,27 @@
+//
+// App.xaml.h
+// Declaration of the App class.
+//
+
+#pragma once
+
+#include "App.g.h"
+
+namespace uwp
+{
+  /// <summary>
+  /// Provides application-specific behavior to supplement the default Application class.
+  /// </summary>
+  ref class App sealed
+  {
+  protected:
+    virtual void OnLaunched(Windows::ApplicationModel::Activation::LaunchActivatedEventArgs^ theEvent) override;
+
+  internal:
+    App();
+
+  private:
+    void OnSuspending(Platform::Object^ theSender, Windows::ApplicationModel::SuspendingEventArgs^ theEvent);
+    void OnNavigationFailed(Platform::Object ^theSender, Windows::UI::Xaml::Navigation::NavigationFailedEventArgs ^theEvent);
+  };
+}