Issue #518 - creating the fixture class
Issue #518 - adding createUser function
Issue #518 - adding createTangle function
Issue #518 - adding createRequest function
Issue #518 - adding createTransaction function
Issue #518 - adding createClaim function
Issue #518 - adding makeUsers function
Issue #518 - adding makeUserTangles function
Issue #518 - adding makeOffers function
Issue #518 - adding makeClaims function
Merge pull request #519 from ndomar/C1_HebaAamer_#19_addingTestingFixture

Testing fixture : Adding leaving tangle fixture.