Pulp

I think this viewset should show all workers both online and offline. The status API only includes online workers because its intent is to help the user reason about the current state of their Pulp installation.

Here are the possible use cases I can think of:

As a user, I can filter by the value of the 'online' (boolean)

As a user, I can filter with lt, gt, eq on the 'heartbeat' timestamp

As a user, I can filter by 'name' with explicit matching so that I can monitor a single worker by name.
As a user, I can filter by 'name' with substring matching so that I can monitor a group of workers on a single machine, or data center

#3143 has the groomed user stories and fields. Closing in favor of #3143.