Mnt/refresh data dictionaries

funpack merge request

All internal copies of the showcase schema have been updated to their latest versions.

The ICD9 schema has been manually adjusted to prevent collisions between Chapter V and Chapter V - supplementary ... (closes #7 (closed))

Unless the maintainer is being sloppy, this merge request will not be accepted unless the following criteria are met:

[ ] Unit tests pass [ ] Changelog updated [ ] Version number in funpack/__init__.py updated according to Semantic Versioning conventions