Adding new tools to FITS

Adding tools to perform characterization of the following file types: plain text, shapefile, rich text file (RTF), Lotus Notes (NSF), Microsoft Office files (word, powerpoint and excel), email (EML), Autocad (DWG), Corel Draw (CDR) and Adobe Illustrator (AI).

Also added support for FIDO, for file format detection (MIME and PRONOM ID).