GL: Check for extension and compressed texture format enumeration.
GL: Check for extension and compressed texture format enumeration.

BlueCrystalLabs/bgfx,septag/bgfx,fluffyfreak/bgfx,mmicko/bgfx,cyndis/bgfx,mendsley/bgfx,emoon/bgfx,emoon/bgfx,LWJGL-CI/bgfx,LWJGL-CI/bgfx,BlueCrystalLabs/bgfx,ktotheoz/bgfx,LWJGL-CI/bgfx,kondrak/bgfx,andr3wmac/bgfx,elmindreda/bgfx,MikePopoloski/bgfx,jdryg/bgfx,cyndis/bgfx,ming4883/bgfx,bkaradzic/bgfx,septag/bgfx,janstk/bgfx,LWJGL-CI/bgfx,ocornut/bgfx,marco-we/bgfx,0-wiz-0/bgfx,mmicko/bgfx,BlueCrystalLabs/bgfx,andr3wmac/bgfx,elmindreda/bgfx,aonorin/bgfx,mcanthony/bgfx,Synxis/bgfx,jdryg/bgfx,sergeScherbakov/bgfx,sergeScherbakov/bgfx,darkimage/bgfx,0-wiz-0/bgfx,attilaz/bgfx,ocornut/bgfx,MikePopoloski/bgfx,cuavas/bgfx,bkaradzic/bgfx,ming4883/bgfx,Vertexwahn/bgfx,LSBOSS/bgfx,mcanthony/bgfx,sergeScherbakov/bgfx,bkaradzic/bgfx,septag/bgfx,darkimage/bgfx,mendsley/bgfx,Extrawurst/bgfx,jpcy/bgfx,kondrak/bgfx,bkaradzic/bgfx,v3n/bgfx,marco-we/bgfx,MikePopoloski/bgfx,jdryg/bgfx,emoon/bgfx,v3n/bgfx,fluffyfreak/bgfx,ocornut/bgfx,jpcy/bgfx,aonorin/bgfx,attilaz/bgfx,Extrawurst/bgfx,marco-we/bgfx,mendsley/bgfx,janstk/bgfx,elmindreda/bgfx,LSBOSS/bgfx,fluffyfreak/bgfx,Synxis/bgfx,cuavas/bgfx,darkimage/bgfx,cuavas/bgfx,ming4883/bgfx,jpcy/bgfx,mmicko/bgfx,Vertexwahn/bgfx,fluffyfreak/bgfx,jpcy/bgfx,kondrak/bgfx,mcanthony/bgfx,v3n/bgfx,LSBOSS/bgfx,aonorin/bgfx,0-wiz-0/bgfx,ktotheoz/bgfx,Synxis/bgfx,janstk/bgfx,Vertexwahn/bgfx,cyndis/bgfx,attilaz/bgfx,Extrawurst/bgfx,jdryg/bgfx,ktotheoz/bgfx,andr3wmac/bgfx