VS: Add support for Windows 10 Universal (Store) Applications

Teach the VS 2015 generator to support WindowsStore 10.0 applications.
Add target properties to customize them:

* VS_WINDOWS_TARGET_PLATFORM_MIN_VERSION: Specifies the minimum version
  of the OS that the project can target.

* VS_DESKTOP_EXTENSIONS_VERSION, VS_MOBILE_EXTENSIONS_VERSIONS,
  VS_IOT_EXTENSIONS_VERSION: Add a reference to the version of the SDK
  specified to the target allowing to target the extended functionality in
  a universal project.

* VS_IOT_STARTUP_TASK: Specifies that the target should be
  built as an IOT continuous background task.

1 files changed, 7 insertions, 0 deletions

diff --git a/Source/cmVisualStudio10TargetGenerator.h b/Source/cmVisualStudio10TargetGenerator.h
index f2aaf0507f..15ed9f29f7 100644
--- a/Source/cmVisualStudio10TargetGenerator.h
+++ b/Source/cmVisualStudio10TargetGenerator.h
@@ -78,6 +78,13 @@ private:
   void WriteMissingFilesWP81();
   void WriteMissingFilesWS80();
   void WriteMissingFilesWS81();
+  void WriteMissingFilesWS10_0();
+  void WritePlatformExtensions();
+  void WriteSinglePlatformExtension(std::string const& extension,
+                                    std::string const& version);
+  void WriteSDKReferences();
+  void WriteSingleSDKReference(std::string const& extension,
+                               std::string const& version);
   void WriteCommonMissingFiles(const std::string& manifestFile);
   void WriteTargetSpecificReferences();