added check for ANGLE_PLATFORM_WINRT to enable desktop compilation
added check for _USRDLL to allow static linking on Win32
added check for nullptr
disables for WINAPI_PARTITION_DESKTOP
added check to undef GL_APICALL and EGLAPI if already defined elsewhere
added check to undef GL_APICALL and EGLAPI if already defined elsewhere
disabled for WINAPI_PARTITION_DESKTOP
disable winrt threademulation for WINAPI_PARTITION_DESKTOP
use LoadLibrary for WINAPI_PARTITION_DESKTOP
disable winrt threademulation for WINAPI_PARTITION_DESKTOP
added .exe .pdb .ilk
removed COMPILE_SHADER
output exe to bin folder