Add anti-capitalist software license
Use more compatible edition 2018
Add cmds playnext, skip, pause, resume, queue, move, clear
Don't play multiple "play"s over eachother & add cmd "stop"
Using more reliable serenity library w/ songbird

Not 100% on what songbird does, yet, but the example was from their
repo. Some of the voice-stuff i guess.
Basic bot with discord-rs. Unreliable.
Initial commit