Parser should catch a few more odd output errors

_Test:
- __init__ should now more accurately categorized PING tests

FieldTest_File:
- Removed bad test for “Pinging” or “PING” in chunk. Not a reliable
way, as some PING tests have errors and never output these strings

PING_Test:
- only parse pings if there were no errors (duh. was causing problems)

TCP_Test:
- added checkForOutputErrors(). Function uses values parsed by
TCP_Thread() initialization, and check for weird instances (final
measurement is from 0.0 to 0.0 seconds, speed is in the order of
quadrillions)