Add new module for AD Users (#402)

* init

* functional

* fully functional

* fix pep8 compliance

* pass sanity tests

* add param

* add tests

* fix tabs in test tasks

* correct spelling

* Update documentation to include required_together and mutually_exclussive tags

* remove whitespace

* move documentation string

* Update plugins/modules/azure_rm_aduser_info.py

Co-authored-by: Fred-sun <37327967+Fred-sun@users.noreply.github.com>

* Update tests/integration/targets/azure_rm_aduser/tasks/main.yml

Co-authored-by: Fred-sun <37327967+Fred-sun@users.noreply.github.com>

* Update collection references in tests

* added modify module and updated tests

* Update to remove meta data block

* Add metaclass line back in

* Remove requested lines

* test to confirm the build fails with removals

* Remove requested metadata block

* Apply suggestions from code review

Co-authored-by: Fred-sun <37327967+Fred-sun@users.noreply.github.com>

* Update azure_rm_aduser_info.py

add space after commit from reviewer suggeststion

* Update azure_rm_aduser.py

add space after commit from reviewer suggeststion

* Add idempotency and test. Operations now only apply to one user only

Co-authored-by: Fred-sun <37327967+Fred-sun@users.noreply.github.com>
Co-authored-by: haiyuan_zhang <haiyuan.zhang1982@gmail.com>