Added logic for showing enemy's target, but no OpenGL context could be found in the thread.
Solved thread problem, but only one explosion and one miss can be displayed at the moment.
Merge branch 'develop' of https://github.com/bipshark/TDA367 into feature/enemy_visuals
Added help methods
Merge branch 'develop' of https://github.com/bipshark/TDA367 into feature/enemy_visuals

Conflicts:
	desktop/src/main/java/edu/chalmers/sankoss/java/models/GameModel.java
Made all the enemy's shoots show on the players screeen.
Merge branch 'feature/enemy_visuals' into develop