simd/archsimd: missing AndNot, Xor, and Not operations for masks(AVX512+)

[Eyalcfish]

There are currently no MaskXxX.(Not, AndNot, Xor) operations in the simd/archsimd library, which seems weird as there are instructions that can implemented them, and also for the ease of use i believe this is important.

[gabyhelp]

Related Code Changes

• [dev.simd] simd/archsimd: add AndNot, Xor, and Not operations to mask types

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[cagedmantis]

Gaby is right, go.dev/cl/750182 seems to address this.

[cagedmantis]

cc @dr2chase @JunyangShao