### Motivation and Context

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Adds the vector search pieces to the two Redis collection types
Features vectorized search and vector text search.

Also features a slight change to the storage format for Hashsets since
the existing was wrong because the index was not picking up those
fields, fixed now, but if you have a Redis Hash Collection running, this
will break things.

Closes #6837 

### Description

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### Contribution Checklist

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- [x] The code builds clean without any errors or warnings
- [x] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [x] All unit tests pass, and I have added new tests where possible
- [ ] I didn't break anyone 😄