Enable GL R8I and R8UI texture formats.
Enable GL R8I and R8UI texture formats.

jpcy/bgfx,MikePopoloski/bgfx,Synxis/bgfx,elmindreda/bgfx,septag/bgfx,kondrak/bgfx,elmindreda/bgfx,mmicko/bgfx,emoon/bgfx,attilaz/bgfx,emoon/bgfx,kondrak/bgfx,0-wiz-0/bgfx,attilaz/bgfx,MikePopoloski/bgfx,andr3wmac/bgfx,bkaradzic/bgfx,aonorin/bgfx,v3n/bgfx,jpcy/bgfx,mendsley/bgfx,LWJGL-CI/bgfx,mendsley/bgfx,mmicko/bgfx,andr3wmac/bgfx,Synxis/bgfx,jdryg/bgfx,kondrak/bgfx,v3n/bgfx,mmicko/bgfx,bkaradzic/bgfx,Synxis/bgfx,0-wiz-0/bgfx,MikePopoloski/bgfx,septag/bgfx,fluffyfreak/bgfx,0-wiz-0/bgfx,fluffyfreak/bgfx,aonorin/bgfx,septag/bgfx,andr3wmac/bgfx,mendsley/bgfx,LWJGL-CI/bgfx,elmindreda/bgfx,jdryg/bgfx,fluffyfreak/bgfx,LWJGL-CI/bgfx,jpcy/bgfx,aonorin/bgfx,emoon/bgfx,bkaradzic/bgfx,attilaz/bgfx,jdryg/bgfx,jdryg/bgfx,fluffyfreak/bgfx,LWJGL-CI/bgfx,bkaradzic/bgfx,v3n/bgfx,jpcy/bgfx