Closet Cleanup and Bins.

This commit was made to help increase the compatibility between MiniStat...ion and /tg/station.

 * Restructured closets to be easier to add new features.
 * Added trash bins that you can hide in.
 * New sound effects for the bin, they are royalty free.
 * Personal lockers can now be (un)locked with your PDA/Wallet/Whatever.