[SharpDX] added new solution and project configurations for DirectX 11.2
[SharpDX] improved DirectX 11.2 configuration to include DirectX 11.1
[SharpDX] Added DX11.2 support in SharpGen
added missing structure to mapping rules
[SharpDX.DXGI] Remaped manually broken interfaces for DX11.2 build
[SharpDX.DXGI] moved structure mapping to correct place
[SharpGen] Fix issues with gccxml for VS2013. Add define _MSC_FULL_VER=170000000 in order to avoid inclusion of nosal2 that will invalid all SAL annotations
[SharpDX] cleaned up mappings and fixed WICRect -> Rectangle mapping
[SharpDX.Compiler] added d3dcompiler.h override, because in the Win 8.1 SDK the needed functions are removed from WinRT builds
[SharpDX] Included DX11.2 configurations in automated build
[SharpDX.Compiler] Reverted changes to D3D compiler and removed missing Win SDK functions in DX11.2 build
Merge branch 'master_integration' into dx112

Conflicts:
	SharpDX.sln
[SharpDX.DXGI] improved mapping for DirectX 11.2 features
[SharpDX.Direct3D11] improvemd DX 11.2 mappings
[SharpDX.DXGI] fixed Toolkit compilation on WinRT platform
[Toolkit.Graphics] Add support for IntPtr as a valid DeviceWindowHandle on Windows Desktop when creating a swapchain.
[Toolkit] Allow unloading assets by name.

* Add Unload(string assetName) to IContentManager.
* Move all asset path handling from ContentManager to FileSystemContentResolver so that the ContentManager is entirely ignorant of where an asset can be found.
[SharpDX] Fix ColorBGRA.SmoothStep()
[SharpDX] Add Lerp() and SmoothStep() to Matrix3x2
[DirectWrite] Replace DirectWrite.Matrix by SharpDX.Matrix3x2