Hash for Array

**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**

While implementing https://github.com/apache/arrow-datafusion/issues/7353, I found we might need hash() for `ArrayRef`.
If there is no existing function, having hash function in arrow-rs for ArrayRef would be a good idea.

Reference code where we need hash() for ScalarValue::List(ArrayRef)
https://github.com/apache/arrow-datafusion/blob/495c25f7d8ac2e9c7c82306f2c0967a766342c8b/datafusion/common/src/scalar.rs#L604C14-L607

**Describe the solution you'd like**

**Describe alternatives you've considered**

**Additional context**

Start by reading the referenced DataFusion issue 7353 and datafusion/common/src/scalar.rs around lines 604-607 to understand how hashing is needed for ScalarValue::List(ArrayRef). Determine the intended hashing behavior and scope for ArrayRef in arrow-rs; done means the referenced use case can hash ArrayRef consistently, with appropriate validation.

Written by the indexing model from the issue text.