Add GraphQL for Detector::SuggestedResource

[jazairi]

Why these changes are being introduced:

We have a SuggestedResource detector that is not yet modeled in our GraphQL.

Relevant ticket(s):

• TCO-24

How this addresses that need:

This adds a SuggestedResourcesType as a field on DetectorsType.

Side effects of this change:

None.

Developer

Ticket(s)

https://mitlibraries.atlassian.net/browse/TCO-###

Accessibility

• ANDI or Wave has been run in accordance to our guide and
  all issues introduced by these changes have been resolved or opened
  as new issues (link to those issues in the Pull Request details above)
• There are no accessibility implications to this change

Documentation

• Project documentation has been updated, and yard output previewed (GraphQL descriptions added)
• No documentation changes are needed

ENV

• All new ENV is documented in README.
• All new ENV has been added to Heroku Pipeline, Staging and Prod.
• ENV has not changed.

Stakeholders

• Stakeholder approval has been confirmed
• Stakeholder approval is not needed

Dependencies and migrations

NO dependencies are updated

NO migrations are included

Reviewer

Code

• I have confirmed that the code works as intended.
• Any CodeClimate issues have been fixed or confirmed as
  added technical debt.

Documentation

• The commit message is clear and follows our guidelines
  (not just this pull request message).
• The documentation has been updated or is unnecessary.
• New dependencies are appropriate or there were no changes.

Testing

• There are appropriate tests covering any new functionality.
• No additional test coverage is required.

[jazairi]

Noting as this goes into review that I've not yet confirmed this works in the GraphQL playground. (I don't have suggested resources loaded locally.) I will confirm with a staging deploy before merging.

[matt-bernhardt]

This looks good, and I've confirmed that the playground now returns suggestedResources inside the detectors block when those are loaded (although please double check on staging, as you've said, in case my local is idiosyncratic somehow).

[jazairi]

I just confirmed detections in staging, so I think we're good to merge. Thanks for the review!