lighting and shadows

went ahead and added lighting and shadows, it still needs adjustments to some hitboxes, shading, lighting intensity in certain areas, etc etc but the cave looks NICE now at least 

added an FPS display at the bottom, at some point this will be togglable but currently it is not, it should run around 144fps but lmk if you're nowhere near that (note; webGL does not push the framerate past your monitor's max framerate, so your 60 FPS monitor will run at 60 FPS)

changed the abilities from seperate hotkeys to a "Use Ability" and "Toggle Ability" system, press F to fire press E to toggle (this still needs some work tutorializing and such but it works well enough for now)

added two more trophies after the boss, these aren't needed to win but they utilize a new ability that will be expanded on later