SQL Server Storage Support for Indexing Pipeline

[KennyZhang1]

Description

This PR adds SQL Server as a storage option for parquet outputs within the indexing pipeline.

Related Issues

This PR is similar to the CosmosDB storage support PR(s) that was completed previously.

Proposed Changes

• Implement the SQLServerPipelineStorage class to interface parquet file outputs with SQL Server
• Update the factory class to include the SQL server option
• Update the output configs and config unit tests as needed

Checklist

• I have tested these changes locally.
• I have reviewed the code changes.
• I have updated the documentation (if necessary).
• I have added appropriate unit tests (if applicable).

Additional Notes

NOTE: This PR is scoped to only handle parquet file outputs in the indexing pipeline. This PR does not support using SQL server storage for cache or vector embedding outputs