Added the Baddie1 class.
Made all Entities default to having a set of 'hurt' variables.
All Entities now come with a '__hurt__' function which is called by default when an Entity gets hurt. This function also calls the new 'hurt_me' function which is handled by the child class.
Added a new dying animations to the player-character.
Made all world entities stop updating and/or moving when the player dies.
Added ability to hurt the player through collision with baddies.
Added ability to hurt baddies with the sword.