added main run to simple.py
Nic profile changes

- Implement 3 styles of profile definition
- Support both config.options and config.get
- Replaces NIC substituions with template
- xml unit tests fixed up
Virt Template deploy, and serial xml tests

- Added virt templates to setup
- moved NIC xml string template to file
- added tests for serial xml
Merge pull request #7187 from ajithhub/nics_as_list

Reorganize NIC Profiles as list of interfaces