BUG: SCIFIO auto image factory registration.

The remote IO module SCIFIO is found not registered correctly.Fixed the
module name input for SCIFIO factory registration in UseITK.cmake.

Added a test in Examples to print out all the image IO formats and
verify all the image IO factory registrations. In order to do this,
some modifications are made in UseITK.cmake to explicitly list each
image format's module name and factory class name.

When a new IO module is added to the toolkit, whether it is an internal
or a remote module, it needs to be added to the  UseITK.cmake
accordingly to be automatically registered to the IO factory.

Change-Id: I848d9d34a21d4f5e72952a2c128159fb499462bc
Merge topic 'ImageIOFactoryRegistrationTest'

c5f016c BUG: SCIFIO auto image factory registration.