High Available hosts monitoring

We can create hosts with multiple interfaces of the same type.
We also have API methods to enable / disable metrics and hosts.

It would be nice to implement the ability to monitor HA using one of the following approaches:

• Several hosts which are each responsible for their own part of the HA. And one virtual host that, based on some metric, activates and starts monitoring one of these hosts
• One host with multiple interfaces and duplicated metrics.

The main idea is to give the user a tool for automatic monitoring and switching between active objects of scientific equipment.