release-2.0.0.2

• Added support for full 256 (8-bit) Colors (actually 259 colors with default color and two transparency colors/modes).
• Renamed enum class Color -> Color16.
• Added new Color struct that can represent all 8-bit colors by constructing it from either Color16 struct, RGB6 object (new), rgb6 int triplet, Gray24 object (new) or just a color index.
• Replacing a lot of Color16 (formerly Color) with new Color struct to make the code much more general.
• Texture now supports 256 (8-bit) Colors (for *.tx version with header line VER 2).
• Updated the ColorPicker widget to support all 8-bit colors and allows you to pick and mix four different color regions: special colors, 4-bit, rgb6 and gray24.
• Upgraded ScreenScaling to support the new 8-bit color space.
• On Windows: When detecting that classic cmd is in use, then all colors are downsampled to a Color16 enum by a closest-distance-to-corresponding-rgb-value heuristic.
• Adding an example (Texture_examples.h) which showcases all 256+3 colors available.
• Adding an example (ScreenScaling_examples.h) which showcases upsampling of a texture.