Description

• Integrates the latest vespa schema changes to accommodate concepts.
• Integrates new test data that includes concepts.
• Updates the sdk filtering functionality to enable concept filtering.
• Updates the unit tests to include tests of the new concept fields.

Proposed version

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Type of change

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• Bug fix
• New feature
• Breaking change

How Has This Been Tested?

Please describe the tests that you added to verify your changes.

Before submitting

• I've read and followed all steps in the Making a pull request
  section of the CONTRIBUTING docs.
• I've updated or added any relevant docstrings following the syntax described in the
  Writing docstrings section of the CONTRIBUTING docs.
• If this PR fixes a bug, I've added a test that will fail without my fix.
• If this PR adds a new feature, I've added tests that sufficiently cover my new functionality.