New Missions and an NPC

Change Log:

• Added a Shepard's Crook that when held down attracts farm animals to you. This was suggested by a community member.
• Added a new location (The Church) and several church basement levels.
• The new location contains one mission (more added later) that will end with you receiving a new NPC.
• The new NPC is a healer that will heal the lowest health person in your team but has no attack.