Create consistent method for test metadata datahub ingestion

[LavMatt]

User Story

As a developer
I expect to be able to quickly make amendments to the test metadata in a consistent and reproducible in our datahub dev instance.
So that i can test different things during development

Value / Purpose

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Useful Contacts

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User Types

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Hypothesis

If we... [do a thing]
Then... [this will happen]

Proposal

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Additional Information

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Definition of Done

Example - [ ] Documentation has been written / updated

• README has been updated
• User docs have been updated
• Another team member has reviewed
• Tests are green