The IoT Broker core components provide basic IoT Broker functionality
that is commonly used by other non-core components.

This is the first public release and corresponds to IoT Broker v0.9.

Co-authored-by: Lisa Gebel <lisa.gebel@iml.fraunhofer.de>
Co-authored-by: Christian Hoppe <christian.hoppe@iml.fraunhofer.de>
Co-authored-by: Jens Leveling <jens.leveling@iml.fraunhofer.de>
Co-authored-by: Severin Mengers <severin.mengers@iml.fraunhofer.de>
Co-authored-by: Sebastian Roeder <sebastian.roeder@iml.fraunhofer.de>
Co-authored-by: David Ronnenberg <david.ronnenberg@iml.fraunhofer.de>