[Feature] UI overlay for GameBoard

[sivertun]

Description

Make a HUD for the GameBoard, for displaying time and abilities of players, and who is who.

Proposed Solution

Flow for adding an ability to a piece:

1. Press the ability in the inventory UI.
2. Ability shows two options: Apply / Cancel
3. Pressing cancel, cancels the whole flow. Pressing apply shows step 4:
4. When pressing apply the UI says, choose piece to apply ability to (or some similar text), and a cancel button is also present.
5. Pressing a piece shows two options again: Checkmark / X (cancel)
6. Checkmark adds the ability, cancel, cancels the current chosen piece.

Screenshots

Prerequisite Issues

Additional Context

Task Checklist

• Make GameUIView display above GameView
• Position HUD above and at the bottom of the screen
• Add fields "username", "time" and a field for displaying clickable abilities.