Added a new CVar that enables you to manually change the currency for totem skill

We use gold as our currency, but this race was just becoming a massive gold farm, so wanted to have the option to manually set it to give out cash instead.  Use the cvar  war3_succ_totem_currency.
Merge pull request #126 from RemyLebeau/patch-10

Added a new CVar that enables you to manually change the currency for to...