CLN: create overflow verification functions in portable.h #62765 
   Add this suggestion to a batch that can be applied as a single commit. This suggestion is invalid because no changes were made to the code. Suggestions cannot be applied while the pull request is closed. Suggestions cannot be applied while viewing a subset of changes. Only one suggestion per line can be applied in a batch. Add this suggestion to a batch that can be applied as a single commit. Applying suggestions on deleted lines is not supported. You must change the existing code in this line in order to create a valid suggestion. Outdated suggestions cannot be applied. This suggestion has been applied or marked resolved. Suggestions cannot be applied from pending reviews. Suggestions cannot be applied on multi-line comments. Suggestions cannot be applied while the pull request is queued to merge. Suggestion cannot be applied right now. Please check back later.    
 
This is a refactor that moves overflow verification functions from
pandas/_libs/src/vendored/numpy/datetime/np_datetime.ctopandas/_libs/include/pandas/portable.h, and uses Generics to handle multiple integer types on Windows.This was originally from #62741, but this change a little bit unrelated to the fix, but I need the functions from this refactor to perform the overflow verifications.