deduce model from sysobjectid
initial import
use pre-formated data files
add sysobjectid models for Extrem
no need for a flag, file presence is enough
only set a new model if defined
don't overwrite model if already set

This makes sysobjectid-based value prioritary over model-based value.
adapt results to latest changes
use consistent spelling
file renaming
ooops
use consistent prototype
Merge branch 'master' into master+objsysid
update tests results
Merge branch 'master' into master+objsysid
rework sysobjectid parsing for readability
add another iana number for EMC
fix expected results
fix expected results
use full oid model part, not just last digit