Added DVC, teamcity-messages and Julia TC integration

[evetion]

Fixes #1879

This does three things

• Adds teamcity-messages as a Python test dependency, enabling TC to keep track of pytest tests (number of tests, number of failures, linking to specific logs), making debugging much easier.

• Adds teamcity specific logging in Julia (much like teamcity-messages) to keep track of the integration test time and differences with a previous model. These parameters are tracked by TC (and can be failed on), and can be plotted over time.

• Finally, and biggest, this adds DVC to our project, with the minio repo tracked, and the integration test as stage. It tracks a new default toml for that model (models/integration.toml), and like TC in 2, the time and differences. Once someone changes either the hws model, or the core code, or the integration.toml, the results are outdated and dvc repro will rerun the test. We can save these experiments over time, and compare results with the VS Code plugin:

This disables the threshold test in the integration test, and opts for monitoring results (could be done automatically) instead. I've also opted for keeping track of results and settings threshold outside of Julia.

This is a backwards compatible setup PR. Changes/additions for benchmark tuning can be made in another PR.

[visr]

Wonderful!

[evetion]

Wonderful!

This is now good to go.

[visr]

Looks good to me! Left some small suggestions.

[evetion]

Note that I have reset the benchmarks to the 1.0 release, before #1904, so any changes are currently from that PR and any followups that touch the core.