Read out evcs input

[sebastian-peter]

Currently, EvcsInput is not read from csv in CsvSystemParticipantSource yet. This needs to change.

[sebastian-peter]

Is there a reason why EvcsInputs are currently returned by CsvSystemParticipantSource.getEvCS(), but not by CsvSystemParticipantSource.getSystemParticipants() ?

@johanneshiry @ckittl

[johanneshiry]

Nope. Seems that someone missed to add this to CsvSystemParticipantSource.getSystemParticipants() when EvCSInput has been introduced.