CFY-1373 new ctx api
Merge branch 'master' into CFY-1373-new-ctx-api

Conflicts:
	tests/dev-requirements.txt
Merge branch 'master' into CFY-1373-new-ctx-api

Conflicts:
	tests/dev-requirements.txt
CFY-1373 agent/plugin installer use new ctx api
CFY-1373 ctx new api
CFY-1431 added validation interface to base type; added execute_operation workflow
CFY-1431 fixed unit test
CFY-1431 fixed unit test
CFY-1431 fixed unit test
Merge branch 'master' into CFY-1431-add-bootstrap-and-teardown-validations-to-openstack-plugin
CFY-1431 fixed refactor bug
CFY-1373 fixed unit tests
Merge branch 'master' into CFY-1373-new-ctx-api
CFY-1431 fixed test
CFY-1373 diamond plugin branch
CFY-1373 fixed tests
CFY-1373 fixed mock to use new ctx api
CFY-1373 fixed tests
CFY-1373 flake8
CFY-1373 fixed unit tests