BrVR beta PC MODE gets entities!

Here's a quick DevLog Update Screenmode update 1.5: - More guns are usable, excluding the m79 for now - Entities are here. A full list of entities that aren't functional are: Clumps, deathmoths, dullers, thing on level 7, beast of level 5, sharks, neighborhood watch, level 40 facelings, hazmat men, 1820's facelings - Adding aiming down sights to most weapons. Still not perfect though. - Added functionality to some minigames, like starflare's laser game and the backrooms buck hunter - Ported some of the new levels and items back into PC mode, still not complete here - Various UX changes, including a headbob effect.