Add Scalar to ScalarValue Nested Type

[jayzhan211]

          I know I'm coming in a little late, but have we considered instead making the type `Scalar<Arc<FixedSizeListArray>>`? ([Scalar being the one in arrow-rs](https://docs.rs/arrow/latest/arrow/array/struct.Scalar.html)) This would enforce that the length is 1, which might be nice. I could also understand if that makes it too awkward to work with.

Nested Type including, List, LargeList, FixedSizeList, Struct

Originally posted by @wjones127 in #8562 (comment)

File a ticket to trace this issue

Better start it after #7835

[jayzhan211]

take

[jayzhan211]

I found that I need to change the signature of create_hashes from arrays: &[ArrayRef] to arrays: &[&dyn Array],

pub fn create_hashes<'a>(
    arrays: &[&dyn Array],
    random_state: &RandomState,
    hashes_buffer: &'a mut Vec<u64>,
) -> Result<&'a mut Vec<u64>> {

Because now, we can only get &dyn Array from fn get() for Scalar

Is this breaking change reasonable?

Also, get_row_at_idx and maybe others that has argument type &[ArrayRef], is there any function that should not be changed from &[ArrayRef] to &[&dyn Array]?