v0.10.0 Demo Released: UI reworked

I reworked how the UI was implemented so it could be resolution-independent. This works well for all scene except the level scene, which becomes oversized above 1980x1080.

The level scene's UI was changed:

• Added a score label
• Moved the pause button
• The tower defense and match 3 fields are now resized according to the resolution
• The round timer now has a permanent home at the top and is the current round label otherwise
• There's room at the top left to add a visual representation of the enemies left in the round (but it's not visible yet)

The story level select was remade so it's a little more usable and the font isn't eye-bleedingly large.

I completed the first (of five) screens for the level editor. But it's not available for players yet.

BUGS

• The white range underlay of the towers is bugged and incorrectly positioned and sized. Doesn't affect gameplay except you can't know the range of the towers.
• Gameplay is practically unplayable at resolutions larger than 1980x1080.