Update icons

Add LV unit to Simulation/Rotation property.

This makes working with different bit depth much easier.

Closes #9.

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

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

applied icon settings.

Gernerate offline Image done.

working demo basebasics.

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