It would be nice to have an element-wise power() compute function.

I.e. in analogy to numpy.power().

Reporter: ARF / @ARF1

Related issues:

• [C++] Arithmetic kernels for numeric arrays (is a child of)
• [C++] Implement power / exponentiation compute kernel (is duplicated by)

_{Note: This issue was originally created as ARROW-11871. Please see the migration documentation for further details.}