Verifies that RAUC bundles can be installed using NETCONF.
We choose to not add this to the "all" suite for now, as the qeneth
topologies do not run with full disk emulation.
To test locally, configure your "make run" instance to use the UEFI
loader, launch `make run`, and then run:
make INFIX_TESTS=test/case/ietf_system/upgrade.py test-run
Create topology objects that are tailored to represent topologies on
the expected format. This let's us make convenient accessors for
things like the controller node, infix devices, getting the ports used
to reach a certain device from another one, etc.
