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Title: One line description
How to configure Envoy for Load Reporting Service (LRS)?

Description:
Since documentation is missing on LRS, I would like to learn and understand how to configure LRS.

• Is it like any other xDS API i.e. you have a management server talking to Envoy mesh?
• How to configure Envoy to emit load reporting stats to a management server?
• Since other xDS APIs are based on Discovery Request/Response, should we implement LoadStats Request/Response in control plane for LRS? Are there any gotchas for this?
• How to turn on/off LRS on a cluster? Is it by increasing/decreasing the load reporting interval
?