[Enhancement] Add functions that extend anynan for non-finite values

[Skylion007]

This package is very appealing for the accelerated anynan,allnan etc functions. There is a common use case that this package is failing to consider though. And that is that following common numpy structure:

assert np.all(np.isfinite(arr))

We may want to exclude inf and -inf as well as NaNs from the input. Would it be possible to add additional functions to this package that can do so? Or alternatively parameterize existing functions to enable this functionality with similar high-performance to anynan / allnan ?

[jbrockmendel]

I came here to request the same thing; found that in pandas we do np.isfinite(arr).all() and it'd be nice to short-circuit. (see also pandas-dev/pandas#32339)