1. add ironic into service_mapping
2. add octavia into service_mapping
3. change interface_type as public
Change-Id: I9ffa419ffac3b7f20784cf7ae4e12a26e3e6bb4d
Under etc dictory, add sample yaml config file
named skyline-apiserver.yaml.sample
Updated the README.md and README-zh_CN.md file
to make quick start more clearly.
Closes-Bug: #1931673
Change-Id: I023cfbeac33543d2989f5017c878cd17160f8c76