Explicitly enable WebGL extensions (#2302)
Explicitly enable WebGL extensions (#2302)

Co-authored-by: Christophe Dehais <acc9b18ae53c8d87225536814453889aaf306b9d@fittingbox.com>
bkaradzic/bgfx,emoon/bgfx,bkaradzic/bgfx,jdryg/bgfx,emoon/bgfx,LWJGL-CI/bgfx,jdryg/bgfx,bkaradzic/bgfx,bkaradzic/bgfx,LWJGL-CI/bgfx,LWJGL-CI/bgfx,jdryg/bgfx,emoon/bgfx,jdryg/bgfx,LWJGL-CI/bgfx