[Python] Manage Teams identity quickstart

[AikoBB]

Purpose

Quickstart for setting up and managing access tokens for Teams users

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce? Added a quickstart for setting up and managing access tokens for Teams users

[ ] Bugfix
[x] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

  Refer to the README file

What to Check

Verify that the following are valid

• The AAD token is exchanged for ACS token

Other Information

[AikoBB]

assign-reviewer: @petrsvihlik

[AikoBB]

assign-reviewer: @maximrytych-ms

[AikoBB]

assign-reviewer: @ddematheu2

[petrsvihlik]

@lei-msft could you please help us merge this?