Make a GPU class in VideoCore to contain the GPU state.

Also moved the GPU MemoryManager class to video_core since it makes more sense for it to be there.

src/video_core/command_processor.h

@@ -10,8 +10,6 @@
 
 namespace Tegra {
 
-namespace CommandProcessor {
-
 enum class SubmissionMode : u32 {
     IncreasingOld = 0,
     Increasing = 1,
@@ -38,6 +36,4 @@ static_assert(sizeof(CommandHeader) == sizeof(u32), "CommandHeader has incorrect
 
 void ProcessCommandList(VAddr address, u32 size);
 
-} // namespace CommandProcessor
-
 } // namespace Tegra