* src/main/java/jgreg/internship/nii/AE/XMIWriter.java: Add comment
* src/main/java/jgreg/internship/nii/CR/XMIReader.java: New Reader for XMI
* src/main/java/jgreg/internship/nii/WF/StatisticsWF.java: Setup a new WF (WIP)
* src/main/java/jgreg/internship/nii/AE/CitationContextExtractorAE.java: Stores only Citations on which we want to focus on
* src/main/java/jgreg/internship/nii/AE/CoCitationExtractorAE.java: Remove dead code
* src/main/java/jgreg/internship/nii/WF/StatisticsWF.java: New Pipeline to extract stats
* src/main/java/jgreg/internship/nii/AE/ExtractAll.java: Count citations within CitationContext
* src/main/java/jgreg/internship/nii/AE/ExtractAll.java: Remove old log
* src/main/java/jgreg/internship/nii/AE/XMIWriter.java,
* src/main/java/jgreg/internship/nii/CR/XMIReader.java: Use XmiCas[De]serializer