Refactor of client mixin for PlayerSkinTexture, moving to a static class, and conditional mixins for different Minecraft versions.

Removing import net.minecraft.client.util.SkinTextures (fails on 1.20, 1.20.1), adding 2 mixins for different Minecraft version support.

New Custom Player Icon support (if black/white pixel set at 31, 49), uses certain empty UV coordinates in player skin file.

Refactor of EntityChatData constructor (no need for playerName anymore). Fixed a bug which broadcasts death messages for any mob with a customName (now it must also have a character sheet)

Added new lead_friend and lead_enemy particles and sounds, to make it clear when a "lead" behavior begins

Broadcast ALL player friendships with each message update (to keep client in sync with server). Also updated many log statements, to improve debug output.

Added NULL checks on client message listeners (to prevent crashes for invalid or uninitialized clients)

Fixing PACKET_S2C_MESSAGE from crashing a newly logging on player, if they receive that message first.

Additional refactor around playerData and friendship and player messages - trying to fix an issue with friendship not updating correctly

More fixes for regressions related to player message bubbles. Seperated `generateCharacter()` and `generateMessage()` functions for simplicity

Fixing another regression found during testing, user messages were breaking due to missing "playerName" attribute

Additional regressions caused by switching from UUID to player's display name (nick). Also, setting "born" and "death" timestamps, and no longer deleting chat data.

Refactor messages back to a single List<ChatMessage>, but now with a "name" attribute based on Player's display name. This will more easily allow for filtering the list of messages by player name, and also allow for more role playing (i.e. changing nick on a server can change your friendship / message history).

Limiting LEAD particles to 3, and move them further in front of the entity. Also scale LEAD particle smaller.

New animated lead particle (arrows pointing where they are going). New animated attack particles with random # of particles.

New follow, flee, attack, and protect particles & sound effects. Protect now auto sets friendship to 1 (if <= 0), to prevent entity from attacking and protecting at the same time. Passive entities no longer emit damage particles when attacking, they emit custom attack particles

Initial custom particles, and a custom particle type and factor for friendship particles (heart and fire)

Small refactor to playerData args, and a fix to prevent "" blank player from being in every entitychatdata. It should only exist with migrated data. Also made the old legacy JSON properties disappear after saving this new data structure.

More refactoring around PlayerData and player-based friendship. Also, adding in migration of data from entity-based friendship to player-based.

Large refactor of EntityChatData, EntityChatDataLight, and ChatDataManager. Separating these into smaller, individual files, to make it easier to maintain.

Switch from HashMap to ConcurrentHashMap to prevent an error when saving (while modifying the HashMap)

New S2C packets to send whitelist / blacklist changes on login and after commands are executed. Chat Bubble rendering & interacting is now dependent on whitelist / blacklist config.

- Shader support (i.e. Iris, etc...)
- Updating CHANGELOG

Attempting to build for minecraft 1.20, 1.20.1, and 1.20.2. Replacing getLiteralString with getString, for compatibility

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