[FA]{Refactoring} I26 - Map Manager Refactoring

Closes #26
Refactoring of Map Manager. Removed waypoint layer.
[FA]{other} I27 - Lighting Changes

Closes #27
-Added more ceiling tiles
-Changed ceiling layer to have 75% opacity
-removed point light from enemeies
-adjusted enemy cone light
[FA]{other} I21 - Map Selection Screen

#21

-Added basic map selection screen with a simple list. On play button
press the currently selected map gets started.
-Added ceiling layer with 1 light to testmap