The player.go and ui.go files have been separated into their own
separate packages.
Additionally, all go.mod files have been modified to point to local
directories.
This change should not only clean up the frontend codebase, but also
make it easier to send/recieve data from the backend (at least
regarding the player)
- Moved user interface code to seperate file
- Added a simple wrapper over ebitenui.UI to allow storage of colors
and such
Hopefully this makes it possible for colors to be changed by users in
the future
