[WIP] Add support for events (#60)

* Add support for events, move concept of domains to IpcService

* Support waiting for KThread, remove some test code, other tweaks

* Use move handle on NIFM since I can't test that now, it's better to leave it how it was

Ryujinx.Graphics/Gpu/NsGpuRegister.cs

@@ -89,5 +89,6 @@ namespace Ryujinx.Graphics.Gpu
         _3dCbData13               = 0x23c4,
         _3dCbData14               = 0x23c8,
         _3dCbData15               = 0x23cc,
+        _3dSetShader              = 0x3890
     }
 }