Added items, monsters, effects found so far for Trick or Treating.
Added recognition for monster images (doesn't work yet).
Can walk away from choice 804.

git-svn-id: svn://svn.code.sf.net/p/kolmafia/code@12962 b29ace70-8910-0410-8dcc-aa2fc6433167
Trick-or-Treating is an adventure. sturdy cane is an item.


git-svn-id: svn://svn.code.sf.net/p/kolmafia/code@12963 b29ace70-8910-0410-8dcc-aa2fc6433167
All-Hallow's Steve's fright wig. Recognize "again" link after fighting a
trick-or-treating monster.


git-svn-id: svn://svn.code.sf.net/p/kolmafia/code@12964 b29ace70-8910-0410-8dcc-aa2fc6433167
Dread candy


git-svn-id: svn://svn.code.sf.net/p/kolmafia/code@12965 b29ace70-8910-0410-8dcc-aa2fc6433167