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).

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.

Fixing EntityChatDataLight, to correctly inflate from the full EntityChatData instances, including the current playerData.

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