### Godot version

4.2.dev 80de898d721f952dac0b102d48bb73d6b02ee1e8

### System information

OpenXR

### Issue description

The Godot 3 OpenXR plugin supported obtaining boundary/guardian information in order to obtain play space logic. While we do have a function in the `XRInterface` in Godot 4 that is supposed to retrieve this information (`get_play_area`) it is not implemented on the Godot 4 `OpenXRInterface`.

This logic needs to be ported.

### Steps to reproduce

Call `get_play_area`, be amazed by it not returning data :P

### Minimal reproduction project

Any XR project.
ActionSet *action_set = action_set_owner.get_or_null(p_action_set);
	ERR_FAIL_NULL(action_set);
	if (action_set->handle != XR_NULL_HANDLE) {
		xrDestroyActionSet(action_set->handle);
	}
	action_set_owner.free(p_action_set);
}
RID OpenXRAPI::get_action_rid(XrAction p_action) {
	List<RID> current;
	action_owner.get_owned_list(&current);
	for (int i = 0; i < current.size(); i++) {
		Action *action = action_owner.get_or_null(current[i]);
		if (action && action->handle == p_action) {
			return current[i];
		}
	}
	return RID();
}
RID OpenXRAPI::action_create(RID p_action_set, const String p_name, const String p_localized_name, OpenXRAction::ActionType p_action_type, const Vector<RID> &p_trackers) {