message: Adding some timing stats / logging while fetching ops.
  Useful for tracking issues where op request on some files take long time
diff: @@ -29,7 +29,10 @@ async function loadAllSequencedMessages(
  const sequencedMessages: ISequencedDocumentMessage[] = [];
  let curr = 0;
  const batch = 2000;
  +
  + let timeStart = Date.now();
  while (true) {
  + console.log(`Loading ops at ${curr}`);
  const messages = await deltaStorage.get(curr, curr + batch);
  if (messages.length === 0) {
  break;
  @@ -39,15 +42,20 @@ async function loadAllSequencedMessages(
  curr = messages[messages.length - 1].sequenceNumber;
  }
  + console.log(`${Math.floor((Date.now() - timeStart) / 1000)} seconds to retrieve ${sequencedMessages.length} ops`);
  +
  const client: IClient = {
  permission: [],
  scopes: [ScopeType.DocRead, ScopeType.DocWrite, ScopeType.SummaryWrite],
  type: "browser",
  user: { id: "blah" },
  };
  + console.log("Retrieving messages from web socket");
  + timeStart = Date.now();
  const deltaStream = await documentService.connectToDeltaStream(client);
  const initialMessages = deltaStream.initialMessages;
  deltaStream.disconnect();
  + console.log(`${Math.floor((Date.now() - timeStart) / 1000)} seconds to connect to web socket`);
  let logMsg = `)`;
  let allMessages = sequencedMessages;
  