[#64650014] Backport Ruby Hiera eYAML gem from Ubuntu Utopic to Precise

Ubuntu Utopic source package obtained from:
http://archive.ubuntu.com/ubuntu/pool/universe/r/ruby-hiera-eyaml/ruby-hiera-eyaml_2.0.2-1.debian.tar.xz

This is accepted by Launchpad:

> Accepted:
 OK: ruby-hiera-eyaml_2.0.2.orig.tar.gz
 OK: ruby-hiera-eyaml_2.0.2-1~ppa1.debian.tar.gz
 OK: ruby-hiera-eyaml_2.0.2-1~ppa1.dsc
     -> Component: main Section: ruby

> ruby-hiera-eyaml (2.0.2-1~ppa1) precise; urgency=low

>  * Backport to Ubuntu Precise; removes dependency on `ruby-hiera` which is
    included in the Puppet Labs `puppet` package.