Improve bits of testing framework and standalone (!560) · Merge requests · nexedi / slapos.core

Introducing IPv6 framework broke some SR tests that relied on each partition having the same IP.

Adapt and refactor the testing framework to simplify fixing such SR tests and share code.
Make sure standalone puts IPv4 before IPv6 in the partition address list to match this implicit API.
Cleanup redundant parts of standalone format code.

Edited Aug 16, 2023 by Xavier Thompson

Improve bits of testing framework and standalone