Dither Studio update

Added Ordered Dithering to my tool:

- 2x2 Bayer
- 3x3 Bayer
- 4x4 Bayer *
- 8x8 Bayer
- 16x16 Bayer
- 3x3 Dispersed
- 4x4 Horizontal
- 4x4 Vertical
- 2x2 Crosshatch
- 3x3 Crosshatch
- 4x4 Crosshatch

Noticed it makes JPG artefacts more visible, so I redid my test images as PNG! pic.twitter.com/fdUYzs9jeh

— Matt Sephton🎴 (@gingerbeardman) February 5, 2021