- moved linux agents to a new node pool (basically renamed old one)
- removed some out of date scripts or moved them to playlists
- removed shell scrips invoked from jenkins
- minor docs updates
Some python classes methods are not used anymore and will be cleaned up
separately.
- configured sccache on buildkite windows machines
- final result is sent to phabricator from "summary.py" that waits for both builds to complete
- extracted "add_url_artifact" to a runnable script
- reorganized code and fixed some of TODOs