list/list_with_delimiter support for object_store binding

[yjshen]

Got not yet implemented while running

cargo test --features hdfs,integration_test --test integration_object_store

in https://github.com/yjshen/delta-rs/pull/2

They are currently todo!(): https://github.com/apache/incubator-opendal/blob/main/bindings/object_store/src/lib.rs#L142-L148

[Xuanwo]

list_with_delimiter can be implemented with op.list, and list can be implemented with op.scan. We also need some transfrom between the return types.

[nasen23]

May I have a try on this?

[Xuanwo]

May I have a try on this?

Of course! It's great to have you on board. I've assigned this task to you.