Add remote shutdown feature for Roon Server

[Rugby (aka Daniel or Big Dan)]

Please see main discussion:

Server Sleep and Wake on LAN

In today’s “Green” world, I think it’s a good idea if the Roon Headless Server can be allowed to sleep after an inactivity period I have my Mac ‘server’ set to sleep after a certain period of inactivity…but it does not detect that the Roon app is actually sending data to an Endpoint…the Mac goses to sleep and therefore Music stops without any warning Can Roon change its communication to the OS, such that the OS knows that there is Activity and therefore does not allow the computer / server to …