[VA] {test before code} MathSneakquestTest

testing vector/degree conversion methods
[VA] {test after code} MathSneakquestTest

vector/degree conversion methods implemented
[VA] {other} I28 movement with a single button

#28 new movement scheme on android: a single button. touch location on
button dictates movement direction
[VA] {other} I34 new Options screen

#34 implemented a new Options screen, possible to set movement scheme
[VA] {other} I28 movement scheme buttons

#28 only buttons associated with the current movement scheme are created