Connections script

Create N subscribed to M channels (on channel channel1, channel2...channelM) clients and keep them connected until interrupted.

run with 4000 connected subscribed clients and one channel:

go run connections.go ws://localhost:8000/connection/websocket secret 4000

with 500 connected subscribed clients each subscribed on 40 channels:

go run connections.go ws://localhost:8000/connection/websocket secret 500 40