KFDtool HW 2020-03-08

* Update BOM to add AC107A

KFDtool HW 2020-01-18

* Update BOM to add AC104B, AC105A, AC106A

KFDtool HW 2019-10-12

* Add PT100 REV D
* PT100 REV D: Fix D1, D2, Q1, Q2 pin 2/3 swap
* PT100 REV D: Add USB ESD protection
* PT100 REV D: Replace LED1 GND pin thermal relief spokes with trace
* Update BOM to add KFD100 HW REV 1.1, AC102A, AC103A, AC104A

KFDtool HW 2019-07-29

* Initial release