As a cluster administrator I want to be able track JSON definitions of extractors in the Tools Catalog so I can automatically configure deployments.

Assumptions

1. Allow users to paste extractor JSON def into script
2. Save the def
3. Offer it up via REST endpoint

Acceptance Criteria

1. Paste JSON into a script definition in Tools Catalog
2. View JSON extractor def
3. Perform GET on toolVersions/:id/extractorConfig and  receive the JSON document