Edit goldenfields map for second introduction quest

Add helmet as tileset.
Add empty wheelbarrow and helmet to forest.
Add second introduction quest to Godwin

- Player is sent on a scouting mission into the forest
to look for a missing supply delivery.
- Player needs to avoid rebel patrols and finds signs of an ambush.
- Player reports back to Godwin.
Reputation modification needed for second introduction quest

Decrease rebel reputation after talking to Godwin the first time.
Increase rebel reputation by the same amount when joining the rebels at Norman.
Purpose: rebel patrols attack the player during introduction quests.
TODO: but for some reason they don't, DEBUG
Merge pull request #49 from jtoelke/introduction2

Introduction quest 2