[FEATURE] Complete Register Local Model Implementation

[dbwiddis]

Is your feature request related to a problem?

The sparse model tool requires the Register Local Model step to be completed. It is currently missing some changes made only to the Register Remote Model step such as updating state index, and handling deploy=true. Its integration tests are currently disabled due to these shortcomings.

What solution would you like?

• Update the step to record its registered model in the state index
• Update the step to handle the boolean deploy = true parameter (see Support deploy=true on RegisterRemoteModelStep #340 for necessary steps)
• Enable its integration test and add a new one for the deploy=true variant