Add option to allow connecting to a specific node

[Christina-Kang]

When reporting a new issue include the following information:

• [ ] sfctl version, can check this using pip show sfctl
• [ ] Service Fabric cluster runtime version
• [ ] Service Fabric hosting location (on-premise or Azure usually)
• [ ] Debug log if an error is present (can be captured using --debug flag)

Be sure to check if an issue already exists with your symptoms. If so, leave a :thumbsup: reaction to the original issue, rather than creating a duplicate.