As a client of the Tools Catalog I want to be able to retrieve the complete list of scripts of a certain type so I can populate dropdown and perform autocomplete.

 Assumptions:
These endpoints are open to anonymous user

Acceptance Criteria

Given there are extractor scripts in the catalog
When I perform a GET on /extractors
Then I should receive a JSON payload containing all of the extractors.

Given there are converter scripts in the catalog
When I perform a GET on /converters
Then I should receive a JSON payload containing all of the converters.