Support configuring storage class for new objects/files

[jamesbornholt]

Creating new files in S3 Intelligent-Tiering as a default, with an option to write to S3 Standard, S3 Standard-Infrequent Access, S3 Glacier Instant Retrieval, and S3 One Zone-Infrequent Access storage classes instead

We should be able to configure the connector to support creating objects in the immediate retrieval storage classes besides S3 Standard:

• Intelligent-Tiering
• Standard-Infrequent Access
• One Zone-Infrequent Access
• Glacier Instant Retrieval

[jamesbornholt]

This now works, using the --storage-class option at mount time. See the PutObject documentation for storage class names: https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutObject.html#AmazonS3-PutObject-request-header-StorageClass

For example:

$ mount-s3 DOC-EXAMPLE-BUCKET ~/mnt --storage-class GLACIER
$ cp test20MiB ~/mnt/test20MiB
$ aws s3api head-object --bucket DOC-EXAMPLE-BUCKET --key test20MiB
{
    "AcceptRanges": "bytes",
    "LastModified": "2023-07-28T16:29:34+00:00",
    "ContentLength": 20971520,
    "ETag": "\"1dfe895c9a9b42eca9666ce666836d85-3\"",
    "ContentType": "binary/octet-stream",
    "ServerSideEncryption": "AES256",
    "Metadata": {},
    "StorageClass": "GLACIER"
}

Note that reading of Glacier Flexible Retrieval and Glacier Deep Archive objects isn't supported (#152).