Move input widgets to delegate directory
Display matrix dimensions
Add edit matrix button
Add matrix class
Implement matrix class members
Get and set matrix parameters (no editor)
Query matrix dimensions in delegate
Add and allocate (empty) matrix editor
Display matrix editor
Fill matrix table
Implement matrix copy constructor
Fix matrix copy (from stromx data) constructor
Add matrix parameter to parameter test operator
First working version of matrix editor
Add integer matrix parameter to test operator, check matrix entries after change