Add NSURLSession Cookie Test case

[mikelupo]

DO NOT SUBMIT THIS AS-IS.

Checklist

• [NO ] I've checked that all new and existing tests pass
• [NOPE] I've updated the documentation if necessary
• [ ABSOLUTELY NOT] I've added an entry in the CHANGELOG to credit myself

Description

This is an example that is meant to reproduce a problem. Please run the test case: test_NSURLSessionCookiesDefaultConfig

Motivation and Context

Oliver, this is for your perusal. There is a consensus amongst our developers that OHHTTPStubs might not be handling cookies correctly for NSURLSession tasks.

It's not solving a problem, though it might lead to 1) a correct test, 2) a bug investigation 3) Much need for alcohol.

Not yet. This is enough SPAM.

Ran it in the simulator.