Define consul::service and consul::check types

[EvanKrall]

Corresponding to services and checks.

I renamed class consul::service to class consul::run_service, because I wanted the consul::service name for this resource type (anything else would be clunky). I'm open to suggestions about what the name of the consul::run_service class should be.

[EvanKrall]

I should note that I'm cheating a bit and using $name variable, which apparently has special meaning in puppet. It's convenient that it defaults to $title.