Improve CPAN dependencies
@guimard I fixed some tests that failed when dependancies such as GSSAPI/LDAP/etc are not installed.
But your 92-Required-*-Methods.t tests still fail because they use use_ok to load the module, and some Auth modules might have missing dependencies:
- Do we declare GSSAPI, LDAP, DBI, etc as mandatory test dependencies?
- OR do we SKIP modules that fail to load in 92-Required*.t ?