Added DarkRP.formatMoney
DarkRP.formatMoney in HUD code
The wallet and salary phrases expect two arguments, one for the currency and one for the actual amount.
I have decided against changing the language for backwards compatibility.
Changing the language would break custom HUDs. The empty string is the best solution.
Refactored money strings > DarkRP.formatMoney

Backwards compatibility is of importance here. The worst that can happen to people who modded DarkRP is that they have to re-translate some phrases.