bpo-30533:Add function inspect.getmembers_static that does not call properties or dynamic properties. (#20911)

* Add function inspect.getmembers_static that does not call properties or dynamic
properties.

* update _getmembers args

* Update Misc/NEWS.d/next/Library/2020-06-16-18-00-56.bpo-30533.StL57t.rst

Co-authored-by: Itamar Ostricher <itamarost@gmail.com>

* Update Lib/inspect.py

Co-authored-by: Itamar Ostricher <itamarost@gmail.com>

* Removes the copy pasted doc string

Co-authored-by: Itamar Ostricher <itamarost@gmail.com>
Co-authored-by: Dino Viehland <dinoviehland@gmail.com>