[s/chamber.py] refactoring and start log command
[chamber.ini] add logging config defaults to ini
[s/chamber.py] add debug version of temp logging
![s/chamber.py] logging  w/ temp, PAR, & RH

Debug/broken version!!!
[s/main.py] enable logging in main loop
[chamber.ini] add missing GetCommand = pcoget
[chamber.[ini|py]] bugfixes to logging draft vers

Still not guaranteed to work
[s/chamber.py] further bugfixes, this is an RC
[s/chamber.py] remove debug prints from log()

This is the beta version. I'll do merge this and do a tagged release
Merge pull request #38 from kdmurray91/logtemphumlight

Add logging to chamber modules v1