adding nagios::nrpe_service which defines a service through nrpe

and deploys the necessary files to make that work between server
and client
add sudo_user to nagios::client::nrpe_file

allow passing sudo and sudo_user to nagios::nrpe_service
missing space
default to not using sudo
style cleanups
put nrpe in nagios::params instead of nagios::server

this lets us use the ::nrpe command variable without pulling in apache
use nagios::params::nrpe

now we don't pull in apache when declaring a nagios::nrpe_service
args should be optional, we can run without
Merge remote branch 'origin/feature-nrpe' into feature-dependency
add a quick way of adding service dependencies through nrpe