Parameter into a template. Initialize everything with 0 on numerical/arithmetical type, such that the behaviour does not change.
The minimum and maximum members are for UI only. I would propose to remove them in a later MR. For now they are filled with a default initialized instance for a non-primitive type.
Parameter does not make sense without a
Filter and there is never an instance where the filter is changed, I made the filter mandatory by using it in the constructor and deleted the setter/getter.
(NOTE: Moved below
Filter in header since now implementation is in header and the implementation needs a fully defined
(NOTE: Unit-Test may be a bit repetetive...)
Closes #359 (closed)