feature (killswitch): opt in remote killswitch to prevent log4j
feature (killswitch): opt in remote killswitch to prevent log4j

Since the log4j issues, we got to think about a way to prevent issues
affecting Filestash. What we came up with is an opt in remote killswitch
which will shut down an application until it's patch appropriatly.

mickael-kerjean/nuage,mickael-kerjean/nuage,mickael-kerjean/nuage,mickael-kerjean/nuage,mickael-kerjean/nuage,mickael-kerjean/nuage