* device: Added support for APC AP9810 zone contacts
* fix: disconnected sensors been detected. And iemConfigProbesTable certainly does get used and it reference
* fix: load is VA, not to be confused with watts. This could be different per device though...
Apparent Power unit = VA
Real Power unit = Watts
And Keeping codeclimate happy
* feature: updated APC MIB
* feature: added test data for APC Smart UPS SMX750i and AP9810 with contact switches