Currently external modules and non-base packages are numbered
from their own internal number space, and even though the Perl
ABI number is embedded into them this isn't externally visible.

For example, perl-html-parser-3.72.1 could be built for ABI
5.26 or for 5.28, we can't easily tell.  This changes all of
that by embedding the ABI number into the filename.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>