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.
Adds function `ExecuteQueryWithArgs(query, ...)` to allow for queries
with user input.
There is a known issue, that the funciton does not work with
std::string. All strings must be converted to c strings.
