Introduce GlobalCommunicationHelper

Introduce GlobalCommunicationHelper

In view of #3437 (!410), this introduces a helper container to store
data related to global communication. With the upcoming builder
approach, there won't be a central location where all elements are
created, so this helper container helps grouping related data allowing
for shorter call signatures. This helper object will become obsolete
when moving to a client-based global communication (#3421,
draft implementation ready).