Guid (#11)

* add guid

* Update Guid.hpp

* it’s too late for all of this

* format

classes.cpp

@@ -47,4 +47,5 @@
 #include "script/scrThread.hpp"
 #include "script/scrThreadContext.hpp"
 #include "script/scrVector.hpp"
-#include "script/types.hpp"
+#include "script/types.hpp"
+#include "rage/Guid.hpp"