[#64650014] Create package for ruby-hiera-eyaml-gpg under Ubuntu Precise

Hiera eYAML GPG provides GPG encryption for the Hiera eYAML backend. Create a new package for Ubuntu Precise.
This should have a package version (eg `0.4-1` or `0.4-1~ppa1`) as it's not a debian native package (it has an orig.tar.gz).