Balance update

A general update to address some feedback on the game, including graphics, sounds, and general balance.

Additions:

- Added a stranger to buy relics from you to help cover the exit fee. Interact with him to open his menu.

Changes:

- Updated the sprites for the player and enemy

- Shorted the hitbox of the attack to make hitting multiple enemies harder

- Removed the god-awful symbol crash from the main attack (my apologies for adding that)

- Relics no longer drop from enemies, you now must find relics in the levels

- Cash drops a little more frequently