Fix AddAmmo setting ammo to 99 when trying to add infinite ammo
This affected the portal mission, the crate only gave you 99 portal guns instead of infinite.
// Common/UTFConvert.h
#ifndef __COMMON_UTFCONVERT_H
#define __COMMON_UTFCONVERT_H
#include "MyString.h"
bool ConvertUTF8ToUnicode(const AString &utfString, UString &resultString);
bool ConvertUnicodeToUTF8(const UString &unicodeString, AString &resultString);
#endif