Initial CITADEL Ecosystem prototype

Summary
This deliverable will include the development of the first version of some of services (KR2, KR4, KR5, KR6, KR7), their integration in the CITADEL ecosystem (KR8), and the deployment of the ecosystem following the requirements and architecture define in T4.1. This deliverable is the outcome from the tasks T4.2 and T4.4.