Save/Load is not yet working correctly!!!

Started to change ImgClass array type from DBL -> SGL.
It looks like that this leads to a performance boost.

Small code cleanups.

Not yet working correctly.

Improve ZernikeCtrl handling

without file dailog.

read and write imgclass.
rework imgclass form array and image.
clean up.
consitent set from image bit depth and image tpye integer.

Gernerate offline Image done.

Save Image to Disk for ImgClass.

Done already for Basler.