This may break a lot of things, but it needs to go in. It was tested in standalone and the UCI grid, but it needs a lot more testing.
Known problems:
* HG asset transfers are borked for now
* missing texture is missing
* 3 unit tests commented out for now
* This allows you to utilize System.Drawing tools on textures within the region.
* Example: use System.Drawing.Bitmap to make your texture, then use Host.Graphics.SaveBitmap to make an asset from it in JPEG2K. You can edit (but not overwrite) existing textures using Host.Graphics.LoadBitmap.