Debug mode complete, added more comments and refactoring

src/main/java/es/yonatan/tfg/Main.java

src/main/java/es/yonatan/tfg/color/IColorRecognizer.java

...n/java/es/yonatan/tfg/color/LeptonicaColorRecognizer.java

src/main/java/es/yonatan/tfg/grouper/IUnitGrouper.java

src/main/java/es/yonatan/tfg/grouper/SimpleUnitGrouper.java

...n/java/es/yonatan/tfg/image/post/IImagePostProcessor.java

src/main/java/es/yonatan/tfg/image/post/PostProcessor.java

...ain/java/es/yonatan/tfg/image/pre/IImagePreProcessor.java

src/main/java/es/yonatan/tfg/image/pre/PreProcessor.java

src/main/java/es/yonatan/tfg/model/ColorData.java

src/main/java/es/yonatan/tfg/model/HasBoundingBox.java

src/main/java/es/yonatan/tfg/model/ITranslatable.java

src/main/java/es/yonatan/tfg/model/Unit.java

src/main/java/es/yonatan/tfg/model/UnitGroup.java

src/main/java/es/yonatan/tfg/recognizer/IUnitRecognizer.java

...n/java/es/yonatan/tfg/recognizer/TesseractRecognizer.java

src/main/java/es/yonatan/tfg/server/SparkServer.java