[Preprocessing] Add pass to swap strided insert_slice with contraction (#23979)

Add `iree-preprocessing-swap-strided-insert-slice-with-contraction` pass
that swaps a strided `tensor.insert_slice` into zeros with its consumer
contraction for 1x1 backward convolutions.

For 1x1 backward data convolutions the strided insert_slice commutes
with the contraction because the reduction dimensions have loop bound 1.
This pass reorders the computation: the contraction operates on the
small un-scattered source (e.g., 2x8x8 instead of 2x18x18 for stride 2),
then the result is scattered into the output. This reduces contraction
FLOPs by ~4x.

This PR is a partial implementation for
https://github.com/iree-org/iree/issues/23976.

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Signed-off-by: yzhang93 <zhyuhang88@gmail.com>
Co-authored-by: Claude <noreply@anthropic.com>