Adap 821/support for redshift 821

[VersusFacit]

This is a followon Pr to this core PR already merged

Problem

The Redshift PR here has no way for us to throw a user facing error in the case the unit test fixture cannot provide sufficient type interpolation data to redshift.

Solution

Add an abstract macro which Redshift can override as needed.

Checklist

• I have read the contributing guide and understand what's expected of me
• I have run this code in development, and it appears to resolve the stated issue
• This PR includes tests, or tests are not required/relevant for this PR
• This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc.) or this PR has already received feedback and approval from Product or DX

[github-actions]

Thank you for your pull request! We could not find a changelog entry for this change. For details on how to document a change, see the contributing guide.

[VersusFacit]

If this needs a changelog, I can write up an issue ticket and add one but this is just opening a backdoor for other adapters as needed, so I'm not sure one is warranted.

[VersusFacit]

The snowflake and postgres PR refs in this PR are further proof that the addition of the NO-OP macro worked for Redshift without breaking other adapters :)