Moved correct encoding and content test over to FemahApiRequestTests
Moved service not found and parameter querying not supported tests to FemahApiRequestTests
Moved successful return test over to FemahApiRequestTests
Factored out some mock creation to make the tests a little more DRY
Removed now defunt WhenAccessingTheService class
Factored out a little more mock setup to be a little more DRY
Changed name of test removing Doesnt contraction and replaced with DoesNot
Merge pull request #62 from AwaNoodle/RefactoringTests

#52 - Refactor unit test layout and naming to be more BDD orientated