[VA] {refactoring} I36 - Animations for rotation

#36 rotation animation only active when enemies are rotating.
[VA] {bugfix} EnemyTest

fixed a few unit tests
[VA] {refactoring} new MathSneakquest unit tests

new tests:
- convert degrees to vector with random degrees
- convert vector to degrees with random vector
- adjustDegrees tests
[VA] {issue} I59 - game over / victory screen

#59 added a new game over/ victory screen