Xlsx Parsing + Additional Documentation

I added the python code to read the excel file located in data/xlsx directory and insert it into a local instance of mysql database.  I also added a OpenDocument Text file that I am hoping will become the project's documentation and notes, for now, and associated OpenDocument Drawings for both images in the document.  Those can be edited with LibreOffice or Apache OpenOffice as I don't have Microsoft Office on my personal laptop.