WINGS: Replace ActiveFedora::FixityService

[elrayle]

Descriptive summary

The fixity service is configured in Hyrax. It is currently configured to use ActiveFedora::FixityService. To remove the dependency on ActiveFedora, this service needs to be updated.

Code impacted by this change

• FixityCheckJob #perform method runs the fixity check
• FixityCheckJob #fixity_service_for method gets the configured fixity service from Hyrax.config.fixity_service
• Hyrax::Configuration #fixity_service method is set to return Hyrax::Fixity::ActiveFedoraFixityService class by default
• Hyrax::Fixity::ActiveFedoraFixityService inherits from ActiveFedora::FixityService

[no-reply]

it looks like Hyrax::Fixity::ActiveFedoraFixityService is parameterized as Hyrax.config.fixity_service. providing a reimplementation of that service against your preferred storage backend is probably sufficient?

i made a start at it here: https://github.com/samvera/hyrax/tree/fixity