SMB4 Support

[tbrittain]

A lot of the exports are supported out of the box, but the UX should be better for tracking SMB4 franchises

• Persistence (JSON?) for keeping track of league IDs and the franchise associated with them for future exports due to the new league format in SMB4 #117
• Toggle to switch between SMB3 and SMB4 and store in app context #115
• Some remediation of SMB3 export scripts for SMB4 and storing these alternative versions alongside each other
  • Should get from the context whether the export is for an SMB3 or 4 league and use the proper export script
• Reworked trait tracking and addition of chemistry tracking for player exports #116
  • This should also display the team chemistry types and the trait upgrade/downgrades
• Pitches per game calculation seems off for SMB4 #118
• Option in config for exporting player IDs in most recent season exports #128
  • This will be useful in the future in case the IDs are required