PIP 76: Streaming Offload

[Renkai Ge]

Hi, community:
        Recently, we are facing some problems with the offloading mechanism 
about performance, resource efficiency, time lag, and so on. So I have drafted 
a new mechanism in PIP 76.
        You can check the proposal at [PIP 76: Streaming Offload · 
apache/pulsar Wiki · 
GitHub](https://github.com/apache/pulsar/wiki/PIP-76%3A-Streaming-Offload), any 
voice is welcomed.

Best,
Renkai