Cleanup createStructuredDirectory

Move createStructuredDirectory into archivematicaFunctions and rename create_structured_directory so it can take advantage of the directory constants and functions already there.  Add manual normalization constants to that file as well.  Update all callers, remove now deprecated archivematicaCreateStructuredDirectory.[py|sh], and do some minor cleanup.

Related to AIP Reingest.
Update these to use the SQL placeholders introduced in #110 instead of worrying about escaping?