Mvs 738 create new client in timetap

[benjf]

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🐬 [JIRA Sprint Card]

https://mass-immunization-system.atlassian.net/browse/MVS-

📰 [Work Description]

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🚦 [Testing/QA Notes]

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[thespaniard514]

Should we be wrapping all this in a try/catch or a Transaction type logic so that if either our FHIR write or the TimeTap write fails, then we can throw an error back to front end without creating random orphaned records?

[thespaniard514]

Also, please update the .env.template to include fake TT key, etc