Autoscale logic - Process amendment for Hosts with longest uptime using rolling drain mode

Environments have hosts with large uptime due to constant use and not able to restart.

With the Autoscaling capability and use of Rolling drain mode, would like to amend the logic so that it selects the hosts by largest uptime when working out which ones can be put into drain mode when using this feature.

This would enable those hosts with the largest uptime to be selected first allowing them to shutdown and get a fresh boot when next required.  It would also help in situations where the host has been up for so long it starts to exhibit errors.