ImageFileNameCategoryTags export

Refactored export code
Added capability to configure graphic file paths
Added capability to export the ImageFileNameCategoryTags CSV output
Added a batch file that generates all Symbol Set based CSVs
Added source code comments throughout

jmsml.config, found under the jmsml.exe bin/Debug folder, can be edited to change Extract, Transform, and Load (ETL) runtime config parameters for point size (32), the root and home folders for image filename generation and testing if a given image file exists, and for where in fact each type of image file, for each type of symbol set, is stored on the user's file system.