As a library user I want to add state changed listeners to connection, publisher or consumer

[l4mby]

The user should be able to add listeners on a connection to check the changing of a connection state

const connection = await environment.createConnection({ changeStateListener: ( sender, fromState, toState, error) => /*...*/ })

Same for a publisher

const publisher = await connection.createPublisher({ 
          queue: { name: "test-queue" },
          changeStateListener: ( sender, fromState, toState, error) => /*...*/ 
})

Same for a consumer

const consumer = await connection.createConsumer(
          "test-queue",
          { 
              messageHandler: (msg) => /*...*/,
              changeStateListener: ( sender, fromState, toState, error) => /*...*/ 
          }
)