Migrates away from API-Service and calls orb-service directly for config compilation and validation

[elliotforbes]

Checklist

=========

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have checked for similar issues and haven't found anything relevant.
• This is not a security issue (which should be reported here: https://circleci.com/security/)
• [x]I have read Contribution Guidelines.

Changes

=======

• Calls the Orb-Service directly as opposed to proxying config compilation + validation through the api-service.
• Now includes the appropriate OwnerID to allow for private orb fetching

Rationale

=========

We are looking to remove config-compilation from the api-service.

Considerations

==============

Why you made some of the technical decisions that you made, especially if the
reasoning is not immediately obvious

Screenshots

============

Before

Image or [gif](https://giphy.com/apps/giphycapture)

After

Image or gif where change can be clearly seen

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[corinnesollows]

I would love to see more function title comments, but its not a required fix