code cleaning

...pen/datamining/pattern_mining/MakePatternOccurrences.java

...datamining/pattern_mining/MakePatternOccurrencesSpan.java

...erpen/datamining/pattern_mining/RunPBADEmbeddingOnly.java

.../be/uantwerpen/exception/UnknownPatternTypeException.java

...java/be/uantwerpen/exception/WindowNotFoundException.java

...main/java/be/uantwerpen/ldataminining/model/CountMap.java

src/main/java/be/uantwerpen/ldataminining/model/ListMap.java

...rpen/ldataminining/preprocessing/ApplyStructureUtils.java

...antwerpen/ldataminining/preprocessing/ArffDenseUtils.java

.../be/uantwerpen/ldataminining/preprocessing/ArffUtils.java

...pen/ldataminining/preprocessing/AutoConvertCSVToArff.java

...antwerpen/ldataminining/preprocessing/SQLQueryOnArff.java

src/main/java/be/uantwerpen/ldataminining/utils/Triple.java

...erpen/mime_webapp/controller/PatternMiningController.java

...antwerpen/mime_webapp/controller/TableLoadController.java

.../be/uantwerpen/datamining/TestMakePatternOccurrences.java

...uantwerpen/datamining/TestMakePatternOccurrencesSpan.java