[3.x] Fix metacard validation and defintion parser features

[pklinef]

What does this PR do?

Add back metacard validation and definition parser to catalog features.

Who is reviewing it?

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How should this be tested?

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What are the relevant tickets?

Fixes: #____

Screenshots

Checklist:

• [ ] Documentation Updated
• [ ] Update / Add Threat Dragon models
• [ ] Update / Add Unit Tests
• [ ] Update / Add Integration Tests

Notes on Review Process

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[pklinef]

build now

[cxddfbot]

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[cxddfbot]

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