Sopel-color-text

* dgw fixed my nightmare code to help himself sleep at night
* changed commie colors

* hotfix

* Added spooky text! 👻

* Minor text fixes
* Removed code bloat

* Removed config options
* Added `usa` command
* Added `commie` command

Initial release, featuring:

* `.rainbow` command
* Configurable color order
* Optional randomized start point
* Control-code stripping on Sopel 7.1+
* Compatible with Sopel 7.0 through (planned) 8.x releases