Dependency checks for an older version of libc-debug

Move of issue https://www.nsnam.org/bugzilla/show_bug.cgi?id=2005

Summary: bake should support wildcarded version numbers (Ubuntu does not provide a symlink for libc6-dbg); instead of

<attribute name="file_test" value="/usr/lib/debug/lib64/ld-linux-x86-64.so.2.debug or /usr/lib/debug/lib/x86_64-linux-gnu/ld-2.19.so or /usr/lib/debug/lib/x86_64-linux-gnu/ld-2.18.so or /usr/lib/debug/lib/x86_64-linux-gnu/ld-2.17.so or /usr/lib/debug/lib/x86_64-linux-gnu/ld-2.16.so or /usr/lib/debug/lib/x86_64-linux-gnu/ld-2.15.so"/>

We should have:

<attribute name="file_test" value="/usr/lib/debug/lib64/ld-linux-x86-64.so.2.debug or /usr/lib/debug/lib/x86_64-linux-gnu/ld-*.so"/>