Discord and Database update

Discord and Database

This update adds Discord integration and a database backing to game data.

• This means games will now persist through updates!

Games now require "authorization", which is either a discord login or just a simple no-password name.
The history viewer now can change turns, although it's not very nice yet.

What's Changed

• db connection by @cmavelis in #53
• Dev builds by @cmavelis in #54
• Try auth by @cmavelis in #55
• Auth followup by @cmavelis in #57
• Full game history by @cmavelis in #60

Full Changelog: v0.2.1...v0.3.0