Golemancy

Changelog:

• Fix a bug with the weeping golem that would cause them to stop healing (thanks to totomio for the bug report)
• Added the pious golem, which is identical to the weeping golem but can heal its owner
• Allow tactile golems to pick up items that are dropped near them, i.e. by a dispenser
• Allow parched golems to fill water bottles (buckets are preferred)
• Certain golems (i.e. entropic) refuse to hold items so that it's obvious they're not using them
• Make base golem search radius configurable
• Added unit tests to (hopefully) catch more bugs