Create a Remote Config for storing configurations in the multi-cluster + namespace

[jeromy-cannon]

Tasks

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1. Read a RemoteConfig instance #771
   Internal Requirement P0 +2
   
2. Write a RemoteConfig instance #772
   Internal Requirement P0 +2
   
3. Inject a RemoteConfig instance #773
   Internal Requirement P0 +2
   
4. Validate a RemoteConfig with a deployment that has one cluster instance #774
   Internal Requirement P0 +2
   
5. Validate a RemoteConfig with a deployment that has two cluster instances #775
   Multiple Cluster Support Needs Refinement P1 +3
   
6. Validate a RemoteConfig with a deployment that has a mirror node and explorer deployed #776
   P0 +1
   
7. Validate a RemoteConfig with a deployment that has a relay deployed #777
   P0 +1
   
8. Capture email address of user that ran the command in the command history #959
   P2 +1
9. Capture the full command line call, not just the command and subcommand, but all flags and their parameters as it was called #960
   P2 +1

• update the remote config after any mutable subcommand

• update the remote config with stepped states during a mutable subcommand? p2?

• needs to be serializable for publishing to k8s

• depends on Create design for RemoteConfig #657