Ptvsd debugger component. (#23336)

* ptvsd debugger component.

* Add test case

* ptvsd as test dependency

* Fix for 3.5

* Fixed bootstrap test

* Use dict direct lookup.

* Don't need to load dependencies.

* Get the test working.

* 3.5 fix

* Set mock return value

* Put tests back, but skip them

* Change log level

script/gen_requirements_all.py

@@ -94,6 +94,7 @@ TEST_REQUIREMENTS = (
     'pilight',
     'pmsensor',
     'prometheus_client',
+    'ptvsd',
     'pushbullet.py',
     'py-canary',
     'pyblackbird',