[Vim Colorscheme Compiler] Problem description & defining our types

In this video we go over what the actual problem we are trying to solve is as well as define some initial types for our parser. Part 1 of my Vim Colorscheme Compiler playlist: https://www.youtube.com/watch?list=PLEQTpgQ9eFCH8ojNpcQIcMAxrp_oyL_zF