Fix RDF neighbor expansion

[kmcginnes]

Description

Fixes issues with neighbor expansion in RDF databases. It uses a single query to retrieve the following information using subqueries and unions:

• Distinct neighbors of source
  • Filter by class
  • Filter by property value
  • Limit results
• Edges between neighbor and source in both directions
• Neighbor properties and classes
• Resource classes of source

Fixes issues

• Property value filter not working
• Neighbor counts inconsistent (only sometimes correct)
• Limit properly applied to neighbor list before getting to edges

Does not fix

• Remaining neighbor count issues with multi-label
• RDF handling of multi-label in other queries
  • I don't think multi-label in RDF was ever officially supported

Other changes

• Moved parseEdgeId function out of types.ts file
• Update idParam to accept a plain string param

Validation

• Verified with air routes in Neptune
• Verified with premiere league in Neptune (includes blank nodes)

Related Issues

• Resolves Optimize the SPARQL query for neighbor types and count #344
• Resolves [Bug] Neighbor expansion is slow and unreliable #324
• Resolves RDF neighbor expansion issues #871
• Part of Nobel prize RDF dataset does not expand neighbors properly #747

Check List

• I confirm that my contribution is made under the terms of the Apache 2.0
  license.
• I have run pnpm checks to ensure code compiles and meets standards.
• I have run pnpm test to check if all tests are passing.
• I have covered new added functionality with unit tests if necessary.
• I have added an entry in the Changelog.md.

[andreachild]

LGTM