add context

lib/fed/listeners/netconnlistener/listener.go

lib/fed/middleware.go

lib/fed/middlewares/eqp/client.go

lib/fed/middlewares/eqp/server.go

lib/fed/middlewares/ps/client.go

lib/fed/middlewares/ps/server.go

lib/fed/middlewares/unterminate/unterminate.go

lib/gat/handlers/pool/dialer.go

lib/gat/handlers/pool/pools/hybrid/middleware.go

lib/gsql/pair.go

lib/gsql/query_test.go