Feature/cpu slice

[ivarflakstad]

I noticed that Slice { indicies } is a RVec<Range<usize>>. We can change the cpu slice function to accept this type instead of start and stop being &[usize] if that is preferred.

I go from indices to start/stop using let (start, stop): (Vec<_>, Vec<_>) = s.indices().iter().map(|r| (r.start, r.end)).unzip();

[pkg-pr-new]

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npm i https://pkg.pr.new/huggingface/ratchet/@ratchet/ratchet-web@261

commit: 08900c2