"Attack" Animations Added + Sword button expanded

Added psuedo-attack animations. Just results in the sprite moving
between motion frames pretty fast (the backwards one actually looks
good, others are meh). Will keep my eyes open for another sprite.

Also expanded the sword button function. Added an "enemy" (its the right
rect at the top left). Two hits from the sprites sword kills the rect.
The sprite can only strike the rect if it is close enough.