Make interface_reload_command a parameter of the interfaces defined type.
Make interface_reload_command a parameter of the interfaces defined type.

This allows users of the puppet-network module to change the command that
is called to reload a nic after configuration changes. For instance on
RHEL it allows someone to configure the reload to only try and bring the
interface up if it has link.

example42/puppet-network,example42/puppet-network,example42/puppet-network