COOPR-510: Basic rest client implementation. Implemented AdminClient and ClusterClient interfaces.
Merge branch 'develop' into feature/rest-client
COOPR-510: Refactored code to avoid code duplication.
Merge branch 'develop' into feature/rest-client
Merge branch 'develop' into feature/rest-client
COOPR-510: Updated feature code according to comments from thr PR; Created base classes for unit testing.
Merge branch 'develop' into feature/rest-client
COOPR-510: Updated feature code according to comments from the last PR; Created unit tests for AdminRestClient and ClusterRestClient.
Merge pull request #648 from cybervisiontech/feature/rest-client

Feature/rest client