Game modes

[nourgaser]

• [x] Add InteractionModes.
• [x] Add GameModes.
• [x] Create a CursorManager to handle different cursors based on the modes.
• Add UI.
  • [x] Add the circuit breaker switch (next to the hint button) to toggle between edit and live modes.
  • [x] Add the current-mode indicator LED. (The ON/OFF backlit thing in the UI design).
• [x] Selection mode bug

[nourgaser]

Closed with https://github.com/Charged-Entertainment/Charged-Learning/commit/3121ed1cd3576faa5ef4a123ef218acc115f4568.

[nourgaser]

Closed with 740a9c3.