Past 72hr Jam Entry koth_cluster final

N.B. This is "final" for the 72hr jam version. If I make a more complete version later it will be under a different name.
-added decals everywhere and some props and func_detail

-fixed floating door
-removed HDR cause it was annoying
-made game winnable (silly mistake!)

will do more art before end time but uploading this in case site goes under load

I am SCREAMING this was a bit of a rush at the end. Couldn't finish everything but got it pretty decent I think! Will modify if I have time after work