Allow ability to page services as well

[pratik60]

Currently pagerbot offers you a way to page a user or schedule directly. As all alarms have a direct mapping to a service, does it make sense to extend the functionality to page a service?

I'm also curious behind the use case for paging a schedule but not a service 😕

[pratik60]

Also tracked in #6, but it was closed after we extended the functionality to add a schedule. The requested use case in the thread was for paging a service/escalation policy.

[pratik60]

@macobo Lemme know your thoughts on services vs schedules for a few of the commands. who is on primary breakage should it point to a service and not a schedule, just like how your alarms must point to. I have a pr in progress, and I'd love to know if you think its worth contributing or only forking.