Added item precondition checks for items so players who do not meet the conditions cannot use the items. tested with the faction bag tokens and they only gave the tokens when a player met all the preconditions or was a Game Master of level 6+
Added support for Items to have a loot source attached to them when dropped or rolled. This fixes the issue where achievements would give the item before it appeared in the achievement window.
Remove the CDClientDatabase::ExecuteQueryWithArgs() function and replace
it with CDClientDatabase::CreatePreppedStmt().
This prevents a developer from accidently using %s, or incorrectly
passing std::string, and causing a silent error.
