[Feat] Develop cli command for creating launch params for a blueprint

[abhijeetkaurav1st]

Requirements:

• Command should output or create a file locally that should contain the launch params for any blueprint

Possible Syntax:

• calm get bp launch-params --name <bp_name>

Todo:

• [ ] Client SDK [e.g. command changes]
• [ ] Unit test, sanity test
• [ ] Integration test
• [ ] Documentation
• [ ] Examples