Send telemetry for Analysis_UnhandledException

[jakebailey]

This function captures unhandled exceptions from the ConsumerLoop. It already calls LogMessage, which is LSP, so we should also send a telemetry event like for RPC exceptions.

[jakebailey]

After I get an exception which invokes this event, it leads to the ObjectDisposedException we've been seeing a lot of, so adding this would help figure out what the actual issues are.