The vendored gns3fy Node model and its nodes_inventory() now carry the
node's netmiko_device_type field, and get_device_ports_from_topology()
resolves the Netmiko device type from it first, falling back to the
device_type:<type> tag. Nodes created from a template inherit the value
from the template automatically, so automation tooling gets the correct
Netmiko driver without tags.
435aa4c257