* Update sensatronics-em1.yaml
sysObjectID wasn't specific enough.
* Create sensatronics-ittm.yaml
Add support for 4/16 channel units
* Create sensatronics-ittm.yaml
Add support for 4/16 channel units
* Change name to be specific to ITTM
* Create sensatronics-ittm.snmprec
* Create sensatronics-ittm.json