* Keep track mapped buffers with fixed offsets
* Started rewriting the memory manager
* Initial support for MapPhysicalMemory and UnmapPhysicalMemory, other tweaks
* MapPhysicalMemory/UnmapPhysicalMemory support, other tweaks
* Rebased
* Optimize the map/unmap physical memory svcs
* Integrate shared font support
* Fix address space reserve alignment
* Some fixes related to gpu memory mapping
* Some cleanup
* Only try uploading const buffers that are really used
* Check if memory region is contiguous
* Rebased
* Add missing count increment on IsRegionModified
* Check for reads/writes outside of the address space, optimize translation with a tail call
* Directly send host address to buffer data
* Cleanup OGLShader
* Directly copy vertex and index data too
* Revert shader bind "cache"
* Address feedback
* Add WIP support for Vertex Program A, add the FADD_I32 shader instruction, small fix on FFMA_I encoding, nits
* Add separate subroutines for program A/B, and copy attributes to a temp
* Move finalization code to main
* Add new line after flip uniform on the shader
* Handle possible case where VPB uses an output attribute written by VPA but not available on the vbo
* Address PR feedback
* Call OpenGL functions directly, remove the pfifo thread, some refactoring
* Fix PerformanceStatistics calculating the wrong host fps, remove wait event on PFIFO as this wasn't exactly was causing the freezes (may replace with an exception later)
* Organized the Gpu folder a bit more, renamed a few things, address PR feedback
* Make PerformanceStatistics thread safe
* Remove unused constant
* Use unlimited update rate for better pref
