ENH: Add end and end_day options for origin from resample
- [x] closes #37804
- [x] tests added / passed
- [ ] passes `black pandas`
- [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

Hello @GYHHAHA! Thanks for updating this PR. We checked the lines you've touched for [PEP 8](https://www.python.org/dev/peps/pep-0008) issues, and found:











There are currently no PEP 8 issues detected in this Pull Request. Cheers! :beers: 

##### Comment last updated at 2020-11-28 10:31:24 UTC i think this is an edge case, but no big deal to add. cc @mroeschke  I will rewrite this [part](https://pandas.pydata.org/docs/user_guide/timeseries.html#use-origin-or-offset-to-adjust-the-start-of-the-bins) of user guide. Need detail enhancement description in whatsnew? 

Thanks for doc-string, tests, codes review.