init Creation, main/speedTest/README Update

CREATIONS:
- __init__.py - holds list of all modules in module folder !!!TO BE
UPDATED WHEN MORE MODULES/CLASSES ARE MADE!!
- main.py - Added some documentation at the top
- speedTest.py - Was Tests.py. Added to new folder (iPerfClasses).
Added documentation at top, as well as check for whether script was run
as main or not