Remove api loopback request for schema ref resolution

Build context

Test for build context

First pass at gear configuration

Enable Warning checks with pylint

Add initial support for user API keys

Merge core and reaper's 'guess file type' logic

Add file type for Philips PAR/REC format

Having Philips PAR/REC files in the system with their own format `parrec` will allow specific classifiers and converters to be used on them.

Check permissions when downloading containers