Haiku gets initial 3D acceleration

I implemented RadeonGfx driver server mode and now it is possible to run multiple processes that use 3D acceleration. Because of GFX ring reset hack, command buffer scheduling is limited and only one command buffer can be executed at moment of time.

That's right - that's X512, the amazing developer who ported Haiku to RISC-V, now working on bringing initial 3D acceleration to Haiku. There's a long road ahead for this to become a default, working part of Haiku, but that doesn't make these first steps any less impressive.