Features- Dithering and CRT Filters

[FiniteSingularity]

• Adds a dithering filter that allows the use to dither using both ordered (Bayer matrix) and unordered (blue noise) dithering algorithms.
• Adds a CRT simulating filter with 24 different phosphor masks, phosphor bloom, corner radius, barrel distortion, vignetting, and black/white level color correction.