Adds a costume vender to the code


![Uploading theater.gif . . .]()
![Uploading theater-broken.gif . . .]()
![Uploading theater-deny.gif . . .]()
![Uploading theater-off.gif . . .]()

This adds a new costume vender into the code, which uses a recolored sprite that was unused (the 'theater' sprite).  Added a theater-deny, as it is locked to require theater access (or you can hack it).  This is intended to be placed, obviously, in the theater.

The machine will vend mostly everything that you could get randomly from the theater, and a few minor extras if hacked/using silver coins.

Note: This pull request merely adds the machine to the code, not to the maps, that's for later.