feat: Infer storage name based on endpoint.

[xinlifoobar]

The AzBlob backend today requires the user to provide the endpoint and storage account name at the same time. While this could be improved by inferring the storage name from an endpoint or endpoint by the storage name and cloud name as the default behaviour. Given the naming conversion azure blob resource uri syntax, e.g., https://<accountName>.blob.core.windows.net.

Ref code: https://github.com/datafuselabs/opendal/blob/main/src/services/azblob/backend.rs#L188

[Xuanwo]

Indeed, we can infer the account name if endpoint endswith blob.core.windows.net. Do you want to submit a PR for this?

[xinlifoobar]

Sure, I could create a PR for this.

[Xuanwo]

Great! I have assigned this issue to you.

[suyanhanx]

Sounds Great!