v0.7.4 - Multi-turn combat and maintenance

LlamaTale now technically supports multi-turn combat. Previously, it always led to the death of one of the participants. With the introduction of a health point system, creatures can take several hits before dying. All acted out through the LLM, of course.

Otherwise, the big part of this release is I fixed all of the tests I broke while developing this fork.

There are some additions to the story and npc's, but I still mean to connect them some more.