Additional bucket response attributes

[manuteleco]

Include additional attributes in Bucket responses, so that fake-gcs-server can be used with certain client libraries that rely on those attributes being there (like googleCloudStorageR).

With these changes we include three additional attributes: timeCreated (was already present when using the Memory backend), updated and storageClass.

So we go from:

curl -s 'http://localhost:8080/storage/v1/b/?project=my-dummy-project-id' | jq
{
  "kind": "storage#buckets",
  "items": [
    {
      "kind": "storage#bucket",
      "id": "my-bucket",
      "name": "my-bucket",
      "versioning": {},
      "location": "US-CENTRAL1"
    }
  ]
}

to:

curl -s 'http://localhost:8080/storage/v1/b/?project=my-dummy-project-id' | jq
{
  "kind": "storage#buckets",
  "items": [
    {
      "kind": "storage#bucket",
      "id": "my-bucket",
      "name": "my-bucket",
      "versioning": {},
      "timeCreated": "2023-07-22T09:01:26.287332+02:00",
      "updated": "2023-07-22T09:01:26.287332+02:00",
      "location": "US-CENTRAL1",
      "storageClass": "STANDARD"
    }
  ]
}

[fsouza]

Can you add some tests?

[fsouza]

Thank you very much!