1. Add extenstions in config.yaml to support skip e2e case when service is disabled
2. Support compute, storage, network, other(identity, heat, configuration) config files to runthe corresponding cases
Change-Id: I310f4481d083319221045708cf5b311d51802b8c
1. Remove useless case: expand root volume
2. Update wait status text by fresh
3. Skip change password according to config
4. Todo: remove resize until support confirm/rollback resize
Change-Id: I28d044816949a5f6773e85f857817f40a193aed6
1. Update password value to fit value check
2. Remove cases in backup e2e: remove backup by volume which is used by instance
3. Update waittime for fip list page to ensure create form can be opened
4. Update image select when create instance
5. Add volume case：create backup and backup inc
6. Update force delete instance command
Change-Id: I45e4bba0b670171860d85e4e5cb402962a41becd
