Tank tomfoolery update 2(22/05)

This update includes various behind the scenes changes such as:

-Changes to how to the tanks collision works, and changing the shape of the hit box

   -This was in response to tanks getting stuck in and/or on walls, making the game virtually unplayable

-Changing some walls hit boxes, in hopes of fixing the tank collision issue

-Some changes to animations to make them look smoother

This update also includes SOUNDS!

-added sound for when the player shoots

-added sound for bullets bouncing on walls

Upcoming features:

-Respawning

    -I know the game is very hard to play when one of the most important things is missing, so I'm working very hard on it, unfortunately, the code does not like me.

-Better movement animations

    -Currently, the tracks spinning is very hard to see, so I've got something in the works to make movement look better.