Feature Request: Linear Algebra isZero and isEye functions

[kwaters4]

Summary of Problem

A couple of quality of life functions for the LinearAlgebra module would be a isZero or isEye functions. This functions would return a bool and be able to take a Matrix as an argument. Similar to the following functions:

proc isDiag -Return true if matrix is diagonal.

proc isHermitian - Return true if matrix is Hermitian

proc isSymmetric - Return true if matrix is symmetric

Maybe there is a quick way to do it already, but it was not obvious to me, outside of creating another identity or zero Matrix. Writing some loops would work as well. There could be some performance issues either approach. But in the end this would be a quality of life feature for users.

Not a blocking issue.

[bradcray]

@Iainmon : I believe you added the requested routines in #22695 (thanks!). Could this issue be considered resolved by that PR, or do you consider there to be more to do here before closing the issue?

[Iainmon]

@bradcray , yes, this issue can be resolved. #22695