Folded plates - add more logical funktionality

[bigcarl5000kg]

Add useful functionality for the folded plates:

- currently complicated transitions on sloping edges with complicated forms in the bending area

- automatic standard cut-outs in different forms (square, circular) are missing
- add the processing through the bending area after bending (corner cut, bewel cut, ...) - enable this for the Display type "unfolded"

[bigcarl5000kg]

Add the option of automatic dimensioning for shaped bend plates too - contour points, bend axis = add recognition of all contour and bend points for dimensions