[Sanity] Override nested params of global config in Jenkins

* Added possibility to overwrite the nested parameters (dictionaries)
in Jenkins. Jenkins EXTRA_PARAMS will have the "override_config"
key which can override partially/fully all options in global
config in YAML format.
* global_config.yaml has now YAML format with lists started with dash

Depends on:
https://gerrit.mcp.mirantis.com/#/c/54895/
https://gerrit.mcp.mirantis.com/#/c/54897/

Change-Id: I8a122cd4307fd6ea341d92fa25f5324ac8eb9f08
Related-Prod: #PROD-29371
3 files changed
tree: cef48b349f02f4aaa2f215f4027a7f96d199e7da
  1. bin/
  2. docs/
  3. test_set/
  4. .gitignore
  5. Dockerfile
  6. LICENSE