Add automatic license release based solely on inactivity

[cory_dearing]

Hello,

I would like to see license recovery (automated release) based solely on inactivity.  Specifically without regard to what tabs are open or anything else.  We have staff that multi-task and it's easy to sit on a license.  Then we end up spamming emails to notify staff to log out.  This is silly.  With some customer defined threshold (maybe 4 hours) we can assume the user is MIA and recover the license.  This seems like a standard feature in other shared license tools like this.  Was surprised this wasn't already implemented.