Add HadoopFileSystemTestSupport Rule

- Update: Add getter for configuration

Use retries = 1
XD-804 Added integration.support package to dirt and used in AbstractSingleNode...Tests
XD-804 fixed a bug in AbstractSingleNodeNamedChannelSink
XD-804 Split integration.support package into source and sink
XD 804 renamed methods in SingleNodeIntegratonSupport
XD-804 added ExampleProcessingChainTests
XD-804 fixed bug in SingleNodeIntegrationSupport
XD-804 refactored and enhanced SingleNodeProcessingChain