Blacksmith wife

This is my first fairly ambitious change.

In this branch:

- blacksmith wife appears on death of blacksmith
- blacksmith wife show exclamation point icon above her head as in the episode before running
- NPCs can show a variety of emotional icons above them now separate from their sprites
- run paths for NPCs have been smoothed so they follow a diagonal path (running down the stairs as in the episode)
- blacksmith wife can be killed with a stolen torch just like the blacksmith

Future additions to make this closer to the episode:

- blacksmith wife has audio for announcing her presence and yelling as she runs around
- blacksmith wife has dialog box appear when she first announces her presence? ("Hello, I'm the blacksmith's wife-")
- all weapons within the blacksmith shop can be taken. (Annie and Shirley take an axe off the wall to kill the blacksmith once he is on fire)