Add device mapping

[jw3]

Add configurable mapping for short names

command: model.sh
devices:
  x0: 81cd8
  x1: 22df8
  x2: 9ebc9
  x3: 22962
  x4: e42e6
  x5: fe4c4
  x6: 89f9d
  x7: 2977b
items:
    ...