v0.2.0-alpha

The Pixelizer update

* The Pixelizer shader is WIP.
* Implemented a modified Rachael's "low detail" shader.
* Moved the dithering shader to it's own pass on the pipeline.
* Added a CLUT atlas method. It can be faster on certain video cards but increases memory usage.
* Added Sega Jaguar's CRY palette and Nintendo's Virtual Boy palette.