Update path for metaschema-java based XML and JSON schema paths for validate command

[aj-stein-nist]

Committer Notes

Closes #200.

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Changes to Core Features:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your core changes, as applicable? This will be follow up in integration tests in Add integration tests with shell commands #178 to mitigate path changes being missed again
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