atlasScientifc Arduino Code

added to the Logger.cpp
Utility functions to begin and end serial (UART) ports by number
Remove ATMega 644/1284 pinout diagram (legacy from 'BigLog')
New hardware serial interface; Atlas Scientific interface

(1) Added a generic interface for Atlas Scientific sensors
(2) For these, created a set of functions to connect these sensors with an arbitrarily-chosen hardware serial port. These could be more generally used, and I am thinking about retooling them into a new class.
(3) Some little cleanup of earlier comments and organization
added function displacementMeasuredByResistance_piecewiseLinear (frost heave sensors)
Variable and semicolon fixes
5TE update and placeholder for MaxBotix
Decagon 5TM function using hardware serial -- untested
Decagon MPS-2 function based on work from 2011/2012 and new 5TE code
Adding sketch to calibrate the conductivity probes via a set of user prompts
More intuitive message printing for AtlasScientific
Exposed hardware serial functions (made Public) and AtlasScientific input variable update
Everything working for Niwot deployment

* All Decagon sensors working, but on hard-coded UART ports
* Realized that splitting up Serial.<command>() into functions does not work, so looking for new ways to generalize Serial connections!
* Have lots of Decagon sensor interfaces based on my attempts to get them working. The new interface is streamlined and *does* work, so will remove the old ones after this commit (but committing to keep these in history in case they are useful)
* Changed the default comms baud rate to 14400 -- one logger having trouble at 57600 but totally OK with all of its sensor comms (including Serial to Decagons at 1200 baud)...
Ability to remove redundant sleep time interval definitions
Removed old Decagon 5TE functions
Serial comms issue for AtlasScientific was an int overflow; baud to computer back to 57600 bps
baud rate var type: int --> uint32_t
More baud rate type updates
Work on getting Atlas Scientific sensors going
Serial 3-->2 fix