Fe6 Support

Created by: HighSaltLevels

Major Changes

• There is now support for randomizing Fire Emblem 6 Binding Blade

Minor Changes

• The Fire Emblem config files are no longer required to exist on disk.
  • There's a new tool in this commit to generate a consumable python file called randomizer/spec.py
  • This file contains a dict enum of the 3 yaml configurations as json
• Temporarily delete the broken tests. I plan to do a major refactor of this code base and I'll re-write the tests then

Bug Fixes

• Fixed a bug that causes the randomizer to not be able to handle Wolf Beil
  • I have no idea how this happened. It's failing on master too 😢
• General code cleanup 🤷