Pigment

Changed
- Added official support for Python 3.5 and 3.6

Added
- `Color.random` class method to generate a random color

Changed
- Updated the method used to blend colors

Added
- Equivalence (equality) checking for `Color` objects
- `repr` method for `Color` objects

Changed
- Updated documentation pages
- Made support official for only Python 3.7 - 3.9

Fixed
- `blend` function

Added
- `Color.from_css_name` class method
- `Color.hue` property

Fixed
- `Color.hsv` and `Color.hls` setters