fix: double total_time -> long total_time (this was changed to microseconds)
Break total_time into individual lock_times and print those too
Include the cft_count lock time held in PurgeOldConnections in the total_lock_time
add tags to the mertics log for ease of identification:

CFNGINE_METRICS            -> StartServer()
CFNGINE_METRICS_THREAD     -> DumpThreadMetrics()
CFNGINE_METRICS_PURGE      -> PurgeOldConnections()
Merge pull request #2 from awsiv/InstrumentServerPerformance_3.3.15

Break individual total lock time into individual lock times + fix