There's a few missing thunks for some non-standard extension functions, but that probably doesn't matter.
-- v2: opengl32: Use the +opengl debug channel everywhere. opengl32: Cast wow64 pointers in glGet(VertexAttrib)Pointerv. opengl32: Implement wow64 thunks for glMapBuffer (et al.). opengl32: Use manual win32 thunks for glMapBuffer (et al.). opengl32: Implement wow64 thunk for glGetString (et al.).