change maxInFlight dynamically

[apmcodes]

Please suggest a way to dynamically change a reader's maxInFlight.

[Ref #256 ]

[apmcodes]

Tried the following and it seems to work.

@dudleycarr Can you please confirm if this is a correct way of dynamically changing maxInFlight and there won't be any bug/ pitfall at scale?. Is there a need to call balance() as well? Thank you.

consumer.js

            console.log('Old maxInFlight', self.reader.readerRdy.maxInFlight);
            self.reader.readerRdy.maxInFlight = 10;
            self.reader.readerRdy.connections.forEach((connRdy) => {
                connRdy.setConnectionRdyMax(10);
            })
            // self.reader.readerRdy.balance();
            console.log('New maxInFlight', self.reader.readerRdy.maxInFlight);

The above fetches 10 jobs at a time.