To be used at your discretion to verify if the client was active since you last checked
it can be used to implement server TTL cleanup and verifications
This is a simple implementation provided with just user/password
TODO: this interface will probaby change as we are challenged with more SASL cases where there is a communication between client and server to determine the authentication
This is for the Remoting layer to push bytes on the AMQP Connection
The buffer readerIndex should be at the latest read byte after this method is called
Even though we are currently always sending packets asynchronsouly
we have a possibility to start trusting on the network flow control
and always sync on the send of the packet
This is for future use and should be kept returning false.