Update system-chat, remove syntax example, change USER/ASSISTANT to PLAYER/ENTITY, simplify FLEE and PROTECT behaviors.

Updated README.md with new video thumbnail, and simplified text, added spoiler to install instructions

- Added new LLM tests for UNFLEE
- Fixed certain behaviors from colliding with others (i.e. mutual exclusive ones)

Added `PlayerBaseGoal` class to allow **goals/behaviors** to **continue** after a player **respawns** / logs out / logs in. Fixed teleport issue to be closer to player position, and fixed a regression caused by teleport that stopped following entities that were too far away.

- New PROTECT behavior
- Native ATTACK abilities
- Improved FOLLOW (with teleportation)
- Improved FLEE (more random, more reliable)

- new junit test module
- 4 initial tests for attack, follow, and flee
- improved regex to support <behavior> or *behavior*
- improved message cleaning
- refactor of HTTP requests to remove some Minecraft and Fabric specific imports

- Large prompt refactor for system chat message

- Bucketing a creature now maintains chat history when respawned

Adding client language into both prompts, so entities will attempt to speak in the player's language (if valid and possible).

Updating system-chat prompt to include new class, skills, and background attributes, removing age, and rearranging them to match the character creation prompt. Also adding "Current " in front of Health and Hunger attributes.

- Added placeholder CHANGELOG.md file, to track releases
- Added CONTRIBUTING.md with instructions on how to contribute
- Updated "Creature Chat" name to "CreatureChat"
- Updated README.md (new resource links, removed upgrade notes, simplified some sections

Updating README.md, renaming COPYING to LICENSE.md (replacing with markdown version of GPLv3), updating screenshots to owlmaddie versions.

- Allow entity to respond to being handed an item automatically (limit 1 time), if they already have a character sheet. NOTE: They must need the item and accept it.

Small refactor to entity character sheet context, and prompt - insert each line separately, instead of the entire character sheet. Added entity_health as well.