[7513] Implement currencies tab work. Also check related item data at server startup.

src/shared/Database/DBCfmt.cpp

@@ -35,6 +35,7 @@ const char CreatureDisplayInfofmt[]="nxxxfxxxxxxxxxxx";
 const char CreatureFamilyfmt[]="nfifiiiiixssssssssssssssssxx";
 const char CreatureSpellDatafmt[]="nxxxxxxxx";
 const char CreatureTypefmt[]="nxxxxxxxxxxxxxxxxxx";
+const char CurrencyTypesfmt[]="xnxi";
 const char DurabilityCostsfmt[]="niiiiiiiiiiiiiiiiiiiiiiiiiiiii";
 const char DurabilityQualityfmt[]="nf";
 const char EmoteEntryfmt[]="nxixxxxxxxxxxxxxxxx";