Adding Appium 2 Examples using the SwagLabs app

[StuMinch]

Per feedback I've received from the field we do not have any modern pytest examples using Appium 2, so I have created a configuration that supports alternating between Android & iOS.

pytest --platform=android test_login.py pytest --platform=ios test_login.py

The apps being referenced can be found here: https://github.com/saucelabs/sample-app-mobile/releases