Player speed should be limited

[HelloMum]

The player can spam the key command to go faster as the keypresses permit, the solution should create a constant speed that can be tuned from outside of the class. This should fixed from the GameElement implementation to suit all the elements. This shouldn't break the actual implementation and admit overriding it.

[PYevan]

I will work for speed today but will be late

[PYevan]

made it