Added Features

- Several parameters were added to easily set up player sprites (idle, run, jump, dash, wall slide, etc.), as well as setup custom motions (attack, crouch, air attack, etc.).

- Added parameter Can Wall Press? If true, allow the player to 'spiderman' by pressing against a wall (having the player run while against a wall), causing the player to descend slowly. 

- Added Enemy Events & enemy ai type: zombie.