ENH - GH:17160, DataFrame.pivot accepts a list of values
- [x] closes #17160
- [x] tests added / passed
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [x] whatsnew entry

I can't figure out why the test_reindexing integration test failed. Can you give some instructions on how to proceed? @BBQHarvey : Don't worry about it.  #17355 will take care of it. closing as stale