Using our new Betamax testing integration, this adds tests to verify how
our cells management behaves against a real Craton API.
The majority of this commit lies in the cassettes. These contain the
real requests and responses for each of the tests. The cassette names
are generated from the tests themselves (combination of test class name
and test method).
Implements: bp testing-plan
Change-Id: I6c029f6ad1408508c61d3363f5ee709e9b8210d2
4f0b316244