ENH: Update windows launcher with Slicer icon.

Thanks to the convenience executable "CTKResEdit" allowing to update
resources of any executables or libraries, on windows, the CTK application
launcher is updated with the Slicer icon.

Fixes #1136

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23030 3bd1e089-480b-0410-8dfb-8563597acbee