Use by default the ipTable MIB entry to retrieve the IP address of interfaces and fallback to the index method as previously.
Fixe the issue with the case where the index is not really an IP address (seen in Fortinet with VDOM).
Related to issue #1016
Allow to retrieve the VRF interface for some devices (used for Nexus devices).
The SNMP::Info::Layer3::Nexus module should have the patch to retrieve the VRF context.
And the context should have been created on Nexus device