Add consumer.paused property to StateConsumer on newConsumer event
We will have: localPaused, remotePaused and producerPaused properties.
mediaService will resume the server-side consumer after the client-side consumer resolves
As explained in the transport.consume() documentation, it's strongly recommended to create the server side consumer with paused: true and resume it once created in the remote endpoint.
closes #152
This PR will:
https://mediasoup.org/documentation/v3/communication-between-client-and-server/#consuming-media