feat: add PartialOrdSnap impl

[tdelabro]

closes #5646 until we address #5694

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This change is 

[orizi]

Reviewed 1 of 1 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @tdelabro)

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corelib/src/traits.cairo line 122 at r1 (raw file):

    }
    
}

Suggestion:

        PartialOrd::<T>::gt(*lhs, *rhs)
    }
}

[tdelabro]

Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @orizi)

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corelib/src/traits.cairo line 122 at r1 (raw file):

    }
    
}

Done.

[orizi]

Reviewed 1 of 1 files at r2, all commit messages.
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[orizi]

Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @gilbens-starkware)

a discussion (no related file):
@gilbens-starkware for 2nd eye.

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[gilbens-starkware]

Reviewed 1 of 1 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @tdelabro)