Add tag list support to JDBC vector stores

[milderhc]

Motivation and Context

Description

Fixes: #240
Fixes: #242

Contribution Checklist

• The code builds clean without any errors or warnings
• The PR follows the SK Contribution Guidelines and the pre-submission formatting script raises no violations
• All unit tests pass, and I have added new tests where possible
• I didn't break anyone 😄

[dsgrieve]

Collections.unmodifiableList(tags) will throw a NPE if tags is null. The default constructor for Hotel passes null for tags.

A bigger question is why tags needs to be a copy. John asked only if it needs to be a copy. And why would tags be a copy and not the other lists?

[milderhc]

Collections.unmodifiableList(tags) will throw a NPE if tags is null. The default constructor for Hotel passes null for tags.

A bigger question is why tags needs to be a copy. John asked only if it needs to be a copy. And why would tags be a copy and not the other lists?

I left it without copy. This Hotel class is only for integration tests anyways.