Add Castlexyz addon (#273)

* Add Castlexyz addon

* chore: Update Addon Metadata

* fix: renamed to config.json

* chore: Update Addon Metadata

* add README.md

* chore: Update Addon Metadata

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: trobukan

.gitmodules

@@ -241,3 +241,6 @@
 [submodule "addons/LuaPlayerYT/module"]
 	path = addons/LuaPlayerYT/module
 	url = https://github.com/antim0118/lpyt-lls-addon
+[submodule "addons/castlexyz/module"]
+	path = addons/castlexyz/module
+	url = https://github.com/trobukan/castlexyz.git

addons/castlexyz/info.json

@@ -0,0 +1,7 @@
+{
+  "$schema": "https://raw.githubusercontent.com/LuaLS/LLS-Addons/main/schemas/addon_info.schema.json",
+  "name": "Castlexyz",
+  "description": "Definitions for the Castlexyz Lua API",
+  "size": 17761,
+  "hasPlugin": false
+}