Updated WinRT and WP8 to pass App Certification tests

1. updated WinRT and WP8 to pass App Certification tests
2. updated project templates
3. updated to latest version of ANGLE
4. fixed type that was preventing loading of precompiled shaders in Windows 8 WinRT builds
5. Added Trim() support for app Suspend() in Windows 8.1 WinRT
6. Fixed CCEGLView::SetScissorInPoints() on WP8 to fixed libextensions CCScollView bug