itk

We currently have a number of CMake variables related to 3rd party libraries polluting ITK's default CMake variable configuration options, which should be minimal. These should be marked as advanced with CMake's mark_as_advanced command in the ITK module CMake code. Variables include EXPAT_* NIFTI and more.

Cancelling "Create new X as ..." dialogue creates new object with the default name (as if from "Create new X"), but clicking Cancel should not produce any object.
I think this happens in several modules, with different types of object, including Table and Volume.

Steps to reproduce

Invoke "Create new Table as ..." dialogue, such as for the Output table of the **Segment St

Add a PolyDataIO based on the VTK::IOPDALmodule:

https://github.com/Kitware/VTK/tree/master/IO/PDAL

Steps (a complete example can be found here):

0. Verify that the test suite runs and passes

info, warning and error messages are currently written to a log file, but are not visible to user.

add window, which shows these messages, and allow to configure if error messages trigger popup (message window).

This will need to be fixed in the main ITK repository.

https://open.cdash.org/viewBuildError.php?type=1&buildid=6056900

Examples/RegistrationITKv4/DeformableRegistration5.cxx:308:80: warning: Line length too long for LaTeX printing
Examples/RegistrationITKv4/DeformableRegistration5.cxx:338:80: warning: Line length too long for LaTeX printing
Examples/RegistrationITKv4/DeformableRegi