Add Repair API

We need an API to handle repairs as part of chronopolis, which has been done in a document that was spread around for review from Chronopolis members.

Work is outlined as follows. As work continues, more will be added to the list below with clarifications/updates in the comments.

• Create entities
  • Repair
  • RepairFile (ManyToOne with Repair)
  • Fulfillment
  • Strategy (how we fulfil a repair request)
  • AceStrategy
  • RsyncStrategy
• Update Schema
  • Postgresql production
  • HSQL Test schema
• Create DB Migrations
• Test DB changes
  • From Migration
  • From Clean Install
• Endpoints for the Ingest API
• Tests against the API
• Integration testing
• Validate Request Bodies
  • Repair Request
  • FulfillmentStrategy ??