fixes #6445 - Configure external authentication via FreeIPA.
fixes #3185 - refresh proxy features when foreman_smartproxy notified
Fixes #6802: Allow specifying initial org and location.
Configuration in YAML

This patch moves configuration to /etc/puppet/foreman.yaml. By moving the
configuration into a settings file, we can use external_node.rb and
foreman-report.rb as plain files. This should open up the path to
shipping them in proper packages.

This is based on a patch by @frimik.
Move foreman::config::enc into foreman::puppetmaster
Configure foreman websockets SSL settings

This defaults to the Puppet CA certificate, which is also the default
for configuring the apache vhost.