The response returned in Azurite doesn't contain versionId when create append blob

**Error Description:**
The response returned in Azurite doesn't contain versionId when create append blob.

**To Reproduce:**
Please run the demo code as following:
```Typescript
import { BlobServiceClient, StorageSharedKeyCredential } from "@azure/storage-blob";
import { assert } from "chai";

async function main() {
const blobServiceClient = new BlobServiceClient("", new StorageSharedKeyCredential("", ""));
const containerClient = blobServiceClient.getContainerClient("");
await containerClient.create();
const appendBlobClient = containerClient.getAppendBlobClient("");
const appendCreateRes = await appendBlobClient.create();
assert.ok(appendCreateRes.versionId);
}

main();
```

**Error Track:**
[https://github.com/Azure/Azurite/blob/master/src/blob/handlers/AppendBlobHandler.ts#L84](https://github.com/Azure/Azurite/blob/master/src/blob/handlers/AppendBlobHandler.ts#L84)
The response of append blob creation doesn't contain versionId.

**Expected Behavior:**
The response returned in Azurite contains versionId when create append blob.

@jongio for notification.