Updated core to v3.1.3

Updated core to v3.1.2

Updated core to support MMOD

Removed dependency on Units library

Updated to have a default constructor and a Config method to configur…

…e the sensor

Updated to use the units library for mbar to Pa conversion

Discovered a bug where the potentially wrong size was being used for …

…requesting bytes and the die temperature check was bypassed.

Updating to pull in mcu-support repo for cmake, lib, ld, and tools libs

Merging Ams5915 and Ams5915-Arduino

Updated to work with pres v1.2.0