ENH: Move wrapper tools into Wrapper/Tools subdirectory.
This is the first commit in a two-stage process of creating a new module for the wrapping tools. This commit moves the files into Wrapper/Tools and renames the library to libvtkWrappingTools. The next commit will make WrappingTools into a VTK module. Change-Id: Ifeecdf51538718718750c028968a142ac52e0855