url,buffer: implement URL.createObjectURL

Signed-off-by: James M Snell <jasnell@gmail.com>

PR-URL: https://github.com/nodejs/node/pull/39693
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Bradley Farias <bradley.meck@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>

lib/buffer.js

@@ -120,6 +120,7 @@ const {
 
 const {
   Blob,
+  resolveObjectURL,
 } = require('internal/blob');
 
 FastBuffer.prototype.constructor = Buffer;
@@ -1239,6 +1240,7 @@ function atob(input) {
 
 module.exports = {
   Blob,
+  resolveObjectURL,
   Buffer,
   SlowBuffer,
   transcode,