[Pod/Owner] Add many to many association.
[Pod] Find pods based on name and owner.
[API] Restrict push access to pods owned by authenticated member.
[Pod] Only create a new pod when explicitly told to do so.
[Owner] No need to disclose ID.
[Pod] Add callback in case a pod is request that is not owned by the specified owner.
[API] Allow an owner to add more owners to a pod.