CMS-2871 Replace Facets with Aggregations in Content Manager

Added most components, working json-receivers.
CMS-2871 Replace Facets with Aggregations in Content Manager

Added wiring, some eventing.
CMS-2871 Replace Facets with Aggregations in Content Manager

Fixed most termAggregations stuff to make it acceptable for now. Some refactoring to be done I think, but lets introduce another aggregation first.
CMS-2871 Replace Facets with Aggregations in Content Manager

Added comment on sketchy line.