SimpeLoad should log time to first result as well as total execution time for WARN/ERROR/THROW

[bartread]

At the moment it collects this information but does not log it so the time reported includes both the query execution time, and the time taken to map objects.

Whilst map time should be fairly insignificant, except for very large result sets (and even then it should be in the minority) the time to first result will give a much better impression of how long a query took to run.

SimpleLoad collects this information; I just forgot to report it.