Experimental support of SIMD (go 1.26)

[samber]

A few helpers might have SIMD variants:

• Sum
• Min/Max
• Clamp
• ReduceSum
• ReduceMinMax
• Product
• Abs
• Sqrt
• Contains
• Every
• Some
• None
• Find
• More ?

We won't recode arrow in ro, but I'm open to discussion for a high-level pipelining abstraction. Example:

• Pythagoras's theorem: Sqrt(Mul(a, a), Mul(b, b))
• Average age of adults: Mean(GreaterThan(18, age))

Since this is an experimental package, the API is considered as unstable.

The helpers currently implemented can be chained, except for ReduceXxxx operators, which perform horizontal aggregations and return a single value.

Initial work: #232