Merge pull request microsoft#255 from Microsoft/develop

Merge pull request microsoft#236 from Microsoft/develop

Updating samples to use the new PIX markers

Merge pull request microsoft#227 from Microsoft/develop

Develop

Merge pull request microsoft#218 from Microsoft/develop

Develop

Merge pull request microsoft#213 from Microsoft/develop

Develop

Merge pull request microsoft#188 from Microsoft/develop

Updating samples for the Windows 10 Anniversary Update

Merge pull request microsoft#186 from Microsoft/develop

Develop

Merge pull request microsoft#167 from Microsoft/develop

MiniEngine: Add missing shader files for Depth of Field effect

Merge pull request microsoft#165 from Microsoft/develop

pull MiniEngine update into master

Merge pull request microsoft#156 from Microsoft/develop

D3D12Fullscreen stdafx.h out of sync between UWP and Desktop versions