Get rid of "chrome.serial.read" and add wrapper of chrome.serial.onReceive
Switch thermistor configuration with preprocessor definition
Add ohm-celcius table for the new thermistor (NXFT15WF104FA2B100)
Add resistor switching logic
Add debug code
* Support resistor switching feature
* Fix plate resistance table
Misc.
Separate varied thermistor tables into thermistor_table.h
Add thermistor table generator
Add thermistor management code
Merge branch 'issue106_resistor_switching' of https://github.com/hisashin/NinjaPCR into issue106_resistor_switching

Conflicts:
	arduino/NinjaPCR/thermistors.cpp
	arduino/NinjaPCR/thermistors.h