Add LV unit to Simulation/Rotation property.

Simu base class now return NaN as pixel size.

This should now be handled by the application code (e.g. CamActor).

This parameter adds a waiting time to the Acquire VI to limit the frame
rate of a simulation source.

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

applied icon settings.

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.

first running version of ImageSourceBaseTest.
error handling for non supported attributes in imaqdx.

on off
error control.