Update 3 / Demo Launch

(Update 3 - 23Chernobals!)

this update completely overhauls the health systems and tweaks the player. it also no longer contains all of the testing scenes but instead holds a demo scene in which all previous test scenes are present.  moreover it it now possible to die, however this is just a useless bool (I.E. nothing happens upon  death). the main menu has been refurbished and the controls are not clear.