[CMake] Module to get UNIX symlinks from a library's name

[Mike Arthur]

I've written a module get the associated symlinks for a library when given the 
library name or another */lib/* symlink on UNIX systems.

If anyone is interested in this then please either comment on the bug below or 
email me.

http://public.kitware.com/Bug/view.php?id=7693

Thanks to my employer, Mendeley (http://www.mendeley.com) for allowing me to 
freely share these.

-- 
Cheers,
Mike Arthur
http://mikearthur.co.uk/