DevVGA-SVGA3d-cocoa.m/h: Build fix and dual profile support. (doesn't work better than the original)
VMSVGA3d: Cleaning up some of the dual-profile mess, switched back to using the 2.1 profile by default.
Use a context configured with the legacy OpenGL profile for getting information not available when using the OpenGL32Core profile.
cleanups.
Devices/vmsvga: header fixes