Runtime changing of yaml config via environment variable use !os_env
Add validator for unique file name of yaml config file. We should have
unique file names in system_test/tests_templates/tests_configs
Yaml configuration compiled only when test started, than increase
creation speed of test plan and improve isolation of config files
Using name of yaml file for link config and test case instead of the
test-group node in yaml file before
Add several types of group names:
case_group.CONFIG
case_gorup(CONFIG)
case_gorup[CONFIG]
case_gorup{CONFIG}
Add default devops template
system_test/tests_templates/devops_configs/default.yaml
Use devops config in ceph_all_on_neutron_vlan.yaml
Implements blueprint template-based-testcases
Change-Id: Ib5ae4126041b2aad059199e93d0c78457125b1fe
06a6405c00