* Use DeviceState for compute and i2m
* Migrate 2D class, more comments
* Migrate DMA copy engine
* Remove now unused code
* Replace GpuState by GpuAccessorState on GpuAcessor, since compute no longer has a GpuState
* More comments
* Add logging (disabled)
* Add back i2m on 3D engine
* Use correct shader local size instead of a hardcoded size
* Remove unused uniform block
* Update XML doc
* Local memory size has 23 bits on maxwell
* Generate compute QMD struct from nv open doc header
* Remove dummy arrays when shared or local memory is not used, other improvements