Added HUD, player entity, some control
Added backround. Some fixes
Added physic models of player and block.
Merge branch 'master' of github.com:cat-in-the-dark-wood/old48_30_game

Conflicts:
	core/src/com/catinthedark/game/assets/Assets.java
	core/src/com/catinthedark/game/screen/impl/GameScreen.java
Inverted color of block.
Player jumps only when touching blocks.
player shot research
Merge branch 'master' of github.com:cat-in-the-dark-wood/old48_30_game

Conflicts:
	core/src/com/catinthedark/game/screen/impl/GameScreen.java
	core/src/entity/Player.java
merge with master