Added Complete Infrastructure for Result Visualization

...artes/dql/core/engine/query/QueryExecutionEngineImpl.java

tools.descartes.dql.vizualization/META-INF/MANIFEST.MF

...n/src/tools/descartes/dql/vizualization/DrawingClass.java

.../tools/descartes/dql/vizualization/Interface/BoxPlot.java

...s/dql/vizualization/Interface/DataTransportInterface.java

...ools/descartes/dql/vizualization/Interface/LineChart.java

...tools/descartes/dql/vizualization/Interface/PieChart.java

...ql/vizualization/observations/AbsoluteTimeCalculator.java

...n/observations/ConnectorInstanceReferenceInterpreter.java

...ualization/observations/ConnectorTimeUnitInterpreter.java

...ql/vizualization/observations/ObservationInterpreter.java

...alization/observations/ObservationInterpreterFactory.java

.../vizualization/observations/ObservationSpecification.java

...vizualization/observations/ObserveBetweenInterpreter.java

...izualization/observations/ObserveRelativeInterpreter.java

...ql/vizualization/observations/RelativeTimeCalculator.java

...tes/dql/vizualization/observations/SampleInterpreter.java

...cartes/dql/vizualization/observations/TimeCalculator.java

...dql/vizualization/observations/TimeModifierConverter.java

...src/tools/descartes/dql/vizualization/util/DQLLogger.java