EE-3816: Changed PGP code to use an explicit security provider instaead of BC.
Enabled pgp module when running in FIPS security model.
Added method to resolve a default security provider, that will try to use BC if not in FIPS mode,
and allows setting a specific provider via system a property.
Merge pull request #506 from mulesoft/MULE-7458

EE-3816: Changed PGP code to use an explicit security provider instead ...