Sprint 7

Changes:

• Message Handling NATS - Part 3 (#80)
  • finalize cloud events (HTTP and NATS)
• [DIDComm Connector] Operations Modes (#1)
  • supported modes (HTTP and NATS)
• Controller - Block Connections (#54)
  • connections can now be blocked via the management API
• Logging
  • log to file if env is PROD in configuration
  • logging is in JSON format
• Docker
  • add health check
• Database
  • add migration in application
  • add initial migration
  • migration files can be used
• Documentation
  • update README
  • add detailed description of all features
  • add diagrams
  • add postman collection and variables
  • add HTTP files that can be used with vs-code extensions
• Add unit tests