Setup: added addons/luagd-extensions again

addons/lua-gdextension/lua_api_definitions/manually_defined_globals.lua

@@ -0,0 +1,23 @@
+--- @meta
+
+--- Yields the current coroutine until the passed signal is emitted.
+--- If an Object is passed, awaits for its 'completed' signal.
+--- This function should only be called inside a coroutine.
+--- 
+--- Note: only available if `GODOT_UTILITY_FUNCTIONS` library is open in the LuaState.
+--- @param awaitable Object | Signal
+--- @return any
+function await(awaitable) end
+
+
+--- Returns the Variant type of the passed value.
+--- Contrary to GDScript's `typeof`, in Lua this does not return the enum like `TYPE_BOOL` or `TYPE_DICTIONARY`, but rather the actual class type like `bool` or `Dictionary`.
+--- ```
+--- if typeof(some_value) == Dictionary then
+---   -- ...
+--- end
+--- ```
+--- Note: only available if `GODOT_VARIANT` library is open in the LuaState.
+--- @param value any
+--- @return userdata?
+function typeof(value) end