In ProcessDisplay display state property does not reflect structure of components and reducers at all which leads to confusion.

Problems:
1. display reducer is in fact diagram/analytics/reducer.
2. Heatmap and diagram reducers are part of the same reducer (create by addLoading) as analytics. Which is confusion, because those do not share state.

Possible solution:
Create diagram reducer in diagram module. In this reducer have heatmap, analytics and bpmn properties.

Use diagram reducer as diagram (not display) in ProcessDisplay reducer.