[Vxl-maintainers] Deleting all CMakeListsLink.txt files

[Ian S. <ian...@st...>]

The use of CMakeListsLink.txt has been deprecated for some time now. With
the exception below, they are not used by ony of the existing VXL
CMakeList.txt files. For tidyness, I plan to delete all of
CMakeListsLink.txt files in the repository. Let me know if this will cause
problems.

There is an exception in contrib/conversions, where they are still used by
VXL, and possibly by external projects. (They deal with optional COOL
libraries.) I'll leave these files for now.

Ian.