cmake OPENSUBDIV_HAS_OPENGLES examples

PixarAnimationStudios/OpenSubdiv opensubdiv/CMakeLists.txt :448 

target_compile_definitions(${osd_target} INTERFACE OPENSUBDIV_HAS_OPENGLES)

lighttransport/tinyusdz src/osd/opensubdiv/CMakeLists.txt :420 

target_compile_definitions(${osd_target} INTERFACE OPENSUBDIV_HAS_OPENGLES)