chore: move addon into Chatter/ + add standard .gitignore

Matches the Exiles fork-layout convention (each addon in its own folder).

Chatter/Modules/AutoLogChat.lua

@@ -0,0 +1,16 @@
+local mod = Chatter:NewModule("Chat Autolog")
+local L = LibStub("AceLocale-3.0"):GetLocale("Chatter")
+mod.modName = L["Chat Autolog"]
+
+function mod:OnEnable()
+	self.isLogging = LoggingChat()
+	LoggingChat(true)
+end
+
+function mod:OnDisable()
+	LoggingChat(self.isLogging)
+end
+
+function mod:Info()
+	return L["Automatically turns on chat logging."]
+end