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

src/BRepAlgoAPI/BRepAlgoAPI_BooleanOperation.cxx

@@ -28,6 +28,7 @@
 #include <BRepAlgoAPI_Check.hxx>
 #include <BRepLib_FuseEdges.hxx>
 #include <BRepTools.hxx>
+#include <OSD_Environment.hxx>
 #include <OSD_File.hxx>
 #include <TCollection_AsciiString.hxx>
 #include <TopExp.hxx>
@@ -53,9 +54,10 @@ class BRepAlgoAPI_DumpOper {
     myIsDump(Standard_False),
     myIsDumpArgs(Standard_False),
     myIsDumpRes(Standard_False)  {
-      char *pathdump = getenv("CSF_DEBUG_BOP");
-      myIsDump=(pathdump!=NULL);
-      myPath=pathdump;
+      OSD_Environment env("CSF_DEBUG_BOP");
+      TCollection_AsciiString pathdump = env.Value();
+      myIsDump = (!pathdump.IsEmpty() ? Standard_True: Standard_False);
+      myPath=pathdump.ToCString();
   };
   //
   virtual ~BRepAlgoAPI_DumpOper() {