[FA]{other} I7, I8 - Design Overhaul

closes #7 closes #8
-Changed Button and Label default styles to have black font color and a
cardboard as background
-Renamed exit button on play screen to menu and changed it to return to
the main menu instead of exiting the app
Merge remote-tracking branch 'origin/vadler_dev' into fadler_dev
[FA]{refactoring} Refactoring and Bugfix

Closes #25

-Renamed Management-Classes to *Manager
-Changed decimal format to show leading zero
-Removed getters from DesignManager and set member variables to public
[FA]{other} I18 - Player Sprite Improvements

#18

-Reworked player movement animations
-Changed frame duration to be based on movement speed
-Put all tiles into 1 .svg file
[FA]{other} I24 - Ceiling Light

Closes #24

-Added ceiling lights
-Changed map to include ceiling lights
-Attempted usage of BodyEditorLoader to create the box2d body definition
with an Editor instead of creating a body for each tile
-> Failed, can't find the name even though it is in the .json file.
Reason has yet to be found.
Merge

Merge