Convert the IDSEBackend to a non-stateful interface
Current status.
The IDSEBackend requires some set methods to be executed before a DSE can be executed, due to the large number of parameters that was passed before. This is no longer needed, since almost all relevant parameters are now passed by the ExplorationSpecification.
Proposed Change.
Remove the set methods from the interface and the base implementation to render the interface more convenient.
(from redmine: issue id 3284, created on 2018-02-21)