Reduce Duplication in Like Kernels

[tustvold]

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

The like kernels contain a significant amount of copy-pasted code with very minor modifications for the various like, ilike, nlike, nilike variants. It would be good to reduce this

Describe the solution you'd like

The existing like_scalar_op should allow for significant reduction in the code duplication

Describe alternatives you've considered

Additional context

[askoa]

I can pick up some of these.

[tustvold]

That would be awesome, thank you 👍

FYI you will want to make sure you are on an up to date master, as #3295 has some non-trivial code movement

[Dandandan]

Good idea 👍. I remember those kernels were non-trivial to change before and are in need of some good cleanup.