Add native stringview support for RIGHT

[Kev1n8]

Which issue does this PR close?

Closes #11917

Rationale for this change

What changes are included in this PR?

Update signature of RIGHT to accept Utf8View and add some tests for that.

Are these changes tested?

yes

Are there any user-facing changes?

no

[Kev1n8]

Pasting a possible implementation of StringViewArray output here (current implementation returns StringArray):

fn string_view_right(args: &[ArrayRef]) -> Result<ArrayRef> {
    let string_array = as_string_view_array(&args[0])?;
    let n_array = as_int64_array(&args[1])?;

    let mut builder = StringViewBuilder::new();
    let combined = string_array.iter().zip(n_array);

    for iter in combined {
        if let (Some(str), Some(n)) = iter {
            match n.cmp(&0) {
                Ordering::Less => {
                    let start = n.unsigned_abs() as usize;
                    let sub_string = &str[start..];
                    builder.append_value(sub_string);
                }
                Ordering::Equal => {
                    builder.append_null();
                }
                Ordering::Greater => {
                    let start = max(str.chars().count() as i64 - n, 0) as usize;
                    let sub_string = &str[start..];
                    builder.append_value(sub_string);
                }
            }
        } else {
            builder.append_null();
        }
    }
    let result = builder.finish();
    Ok(Arc::new(result) as ArrayRef)
}

[XiangpengHao]

Code below is quite similar to the string_right function, I wonder if it is possible to use the ArrayAccessor to reuse the code:
https://github.com/apache/arrow-rs/blob/a693f0f9c37567b2b121e261fc0a4587776d5ca4/arrow-array/src/array/mod.rs#L438-L531

Similar to this pr: https://github.com/apache/datafusion/pull/11884/files#diff-e49633ca67d4035f244e96909aa4d9d9a484a933a7783bcdee3a6cf32dcd7ab8R76

[Kev1n8]

Thanks for the advice. I couldn't come up with a proper way to combine them but now I get it :)

[alamb]

Thank you @Kev1n8 and @XiangpengHao -- very nice

[alamb]

👍