Spreadsheet validator for valuesets and codesystems

[bryantaustin13]

An Operation to compare a spreadsheet containing value set and code system urls with source of truth ones in IGs.

Description An Operation that takes a spreadsheet with value set and code system URLs, parses that sheet, grabs the value sets and/or code systems from the test url and compares those with the IG sources of truth to highlight discrepancies.

• Github Issue: it also addresses part of https://github.com/cqframework/cqf-tooling/issues/267#issue-949795670
• [ X] I've read the contribution guidelines
• [ X] Code compiles without errors
• [ ] Tests are created / updated
• [ ] Documentation is created / updated

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