Added tag feature to nouns and rooms

This also makes movable, wearable and visible flags obsolete, so these
have been removed from tests and actions, and Starflight has been
updated.

The new 'tagged' test also needed a way to specify the current room, so
added a %ROOM wildcard, and moved wildcards to their own functions in
the selector class.

Also made a fix to text rendering in the command-line app.
Added "any" tests for specific selectors