Automatically Close "Idle" Long Open Connections

As Phoenix may keep a maximum default number of connections.  Badly performing client calls or internal errors (See PHOENIX-5802).  Can cause total available connections to go to 0.  Proposing a client connection monitor with a connection reaper like task to reap idle connections.

Definition of "Idle"

Simple may be simple time based say if a connection has been open for configurable amount of minutes simply close.

More complicated solution may be keeping track of last interaction time.