Extend `._tensor_impl` with advanced indexing functions#2777

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vlad-perevezentsev wants to merge 9 commits intomove_tensor_impl_copyfrom

move_tensor_impl_accum_bool_ind_eye

Commits on Feb 19, 2026

Move ti.mask_positions() and ti._cumsum_1d()
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Move ti._extract(), ti._place(), ti._nonzero()
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Move place() to dpctl_ext/tensor and reuse it in dpnp
vlad-perevezentsev
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Move extract() to dpctl_ext/tensor and reuse it in dpnp
vlad-perevezentsev
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Move nonzero() to dpctl_ext/tensor and reuse it in dpnp
vlad-perevezentsev
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Move put_along_axis to dpctl_ext/tensor and reuse it in dpnp
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Move take_along_axis() to dpctl_ext/tensor and reuse it in dpnp
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Move ti._eye to() to dpctl_ext/tensor/libtensor
vlad-perevezentsev
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Move eye() to dpctl_ext/tensor and reuse it in dpnp
vlad-perevezentsev
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