[Task] refactor main to smoothly handle gui or cli mode

[coreybasden]

perhaps create a cli class and a gui class then refactor main into simply asking which mode the user wants, and then looping either cli.run() or gui.run() depending.

[RyanHirte]

should take not super long since it's just folders or packages moving around.

time: 30 - 45 minutes

[zDmarkley]

we could hold different main(s) for both CLI and GUI choices. main could just be managing if the user chooses 'cli' or 'gui'

[coreybasden]

done