[RFE] Add logger / log.info for --mod-host --can-self-schedule

[sadsfae]

It'd be nice to get stdout confirmation that prints the affected host and action taken for the following commands:

quads --mod-host --host host01.example.com --can-self-schedule true

or

quads --mod-host --host host01.example.com --can-self-schedule false

e.g.

host01.example.com self-scheduling is enabled
host01.example.com self-scheduling is disabled

[grafuls]

We can return a representation of the modified host, not a phrase of what has changed specifically as there are way too many different possibilities of what can change.

[sadsfae]

We can return a representation of the modified host, not a phrase of what has changed specifically as there are way too many different possibilities of what can change.

Makes sense, something like we do for --mod-cloud with a generic modification message.