Creating the placeholder for Sipity::Jobs
Renaming PolicyEnforcer to AuthorizationLayer
Adding ctags ignore command
Constantizing DoiCreationRequest#states
Requiring :requested_by for citation submission
Updating CitationRunners
Adding requested_by for DOI and Citation
Renaming sipity_header_id to header_id
Adding Conversion methods

And appeasing Hound as the conversion methods are likely to be
complicated if statements.
Augmenting Sipity::Conversions with README
Adding ezid-client

$ bundle
@WIP Adding Ezid::Client
Preliminary commit for DOI Creation
Expanding on the DOI Creation Request Job
Updating secrets
Dependency injection for DoiCreationRequest
Teasing apart DoiCreationRequestJob
Appeasing Rubocop
Adding Repository to DoiCreationRequest
Adding TODO items

[skip ci]