http: add highWaterMark opt in http.createServer

Add highWaterMark option when creating a new HTTP server.
This option will override the default (readable|writable)
highWaterMark values on sockets created.

Fixes: https://github.com/nodejs/node/issues/46606
PR-URL: https://github.com/nodejs/node/pull/47405
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Paolo Insogna <paolo@cowtech.it>
Reviewed-By: Debadree Chatterjee <debadree333@gmail.com>

lib/http.js

@@ -54,6 +54,7 @@ let maxHeaderSize;
  *   maxHeaderSize?: number;
  *   requireHostHeader?: boolean;
  *   joinDuplicateHeaders?: boolean;
+ *   highWaterMark?: number;
  *   }} [opts]
  * @param {Function} [requestListener]
  * @returns {Server}