Migrate the services to the core lib

Description:

We have some functionalities collected in the core lib as a central place. We should switch to this core lib for the services that are currently not using it.

Services affected:

• pre auth bridge
• retrieval service
• revocation service (status list service is the new Name)
• plugin discovery service
• configuration service
• storage service

Acceptance Criteria:

• Switch to using logging from the core lib
• Switch to using NATS handling from the core lib
• Switch to using Config parsing/management from the core lib
• Switch to using REST management from the core lib