[ox/std] Add a form of small string and small vector optimization

deps/ox/src/ox/clargs/clargs.hpp

@@ -9,11 +9,10 @@
 #pragma once
 
 #include <ox/std/hashmap.hpp>
+#include <ox/std/string.hpp>
 
 namespace ox {
 
-class String;
-
 class ClArgs {
 	private:
 		HashMap<String, bool> m_bools;