OpenDAL capability should represent the maximum service capacity rather than its current configuration

[Xuanwo]

OpenDAL uses Capability to represent the operations supported by services. Historically, we have provided separate configurations for users to customize services, such as batch_max_operations and disable_stat_with_override.

This might be confusing for features that users can enable or disable, such as bucket versioning. When users set enable_versioning, they might think they are enabling versioning on the bucket itself, but in reality, it only toggles a flag in OpenDAL.

Perhaps we should offer users a way to adjust the capability themselves, rather than attempting to create configurations for every field.

[meteorgan]

Perhaps, we should distinguish between Capability and Option. versioning represents the service capability and it come with a default option. What we provide to users is the Option