[MAX31856] Implemented thermocouple driver

CMakeLists.txt

cmake/boardcore.cmake

src/shared/sensors/MAX31855/MAX31855.cpp

src/shared/sensors/MAX31855/MAX31855.h

src/shared/sensors/MAX31856/MAX31856.cpp

src/shared/sensors/MAX31856/MAX31856.h

src/tests/sensors/test-max31856.cpp