* Added Arris C3 to cmts.yaml
* Added Arris C3 hardware
* ARRIS CMTS->Move from cmts to arris_c4 yaml
* Fixed some Arris_c4 definitions
* Added Arris C3 CMTS
* Fixed some typos
* Arris C3 test files
* Arris C4 test files
* Deleted not anymore valid files
* Renamed from underscore
* Fixed some typos
* Correct test files
* Removed old snmprec files
* Correct test files v2
* Deleted more old files
* Return to cmts for valid_sensor() for Arris C4/C4c
* Re-done test files
* Re-do test files after rebase
