ENH: Add madvise for memmap objects
#29260
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A simple wrapper on python's
mmap.madvise, as requested in #13172I've seen the long-stalled PR #24489 addressing similar functionality. I'm eager to contribute more to NumPy, and if the original author of that PR wishes to continue their efforts, I'm happy to step aside and close this PR.
After seeing comments and review on that PR, I'm not sure what to do on view of mmap.