[Feat] Develop ansible module for enabling multicluster in NDB vm

[bhati-pradeep]

Requirements:

• [ ] create module for enabling multi cluster in NDB VM so that clusters can be registered further

Todo:

• [ ] Client SDK, get_spec()
• [ ] Ansible spec & spec validator
• [ ] Unit test, sanity test
• [ ] Integration test
• [ ] Documentation
• [ ] Examples