Expose ArrowNativeTypeOp trait to make it useful for type bound

[viirya]

Which issue does this PR close?

Closes #2839.

Rationale for this change

What changes are included in this PR?

Are there any user-facing changes?

[tustvold]

I have a slight reservation that we may want to make breaking changes to this API in future and this will now be more complicated, but nothing concrete...

Perhaps we could keep this private, and rephrase the method constraints in terms of public traits. Maybe make ArrowNumericType constrain its Native type to be ArrowNativeTypeOps or something 🤔

I'll have a play

Edit: actually we'll need to make this public to split the crate, LGTM 👍

[tustvold]

As ArrowNativeType is sealed, we technically don't need this

[ursabot]

Benchmark runs are scheduled for baseline = 37c8679 and contender = 8dd94a9. 8dd94a9 is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ec2-t3-xlarge-us-east-2] ec2-t3-xlarge-us-east-2
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on test-mac-arm] test-mac-arm
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-i9-9960x] ursa-i9-9960x
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-thinkcentre-m75q] ursa-thinkcentre-m75q
Buildkite builds:
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java