Black Heart Devlog(2)

Added a pogo attack mechanic and a healing mechanic. Pogo attacks are when the player strikes an enemy from above, then the player recoils upward from the enemy.  The healing mechanic allows the player to gain a bit of health back, by using healing potions. The player starts off with a few healing potions. Once the player runs out, they can no longer heal. Destroying enemies replenishes potions(this will later be changed).