Implement `eq`, `ne`, `lt`, `gt`, `lte`, and `gte` vector operations

[ChillFish8]

The aim of these routines is to be able to compare two provided vectors and get back a resulting mask of 0's and 1s indicating true or false values.

likely operation API naming:

<dtype>_x<dims>_<arch>_nofma_cmp_eq_vector(a: &[T], b: &[T], result: &mut [T])

There can also be value-specialized operations:

<dtype>_x<dims>_<arch>_nofma_cmp_eq_value(value: T, a: &[T], result: &mut [T])

Naming might be difficult here, because there are a few different scenarios for routines:

• Returning a mask
• Both vector and single value specializations
• Returning true/false on a match with any or all like logic