The build scripts for generating `anatomy.txt` and related files have
been removed as they are no longer used or maintained. The Kölner
Phonetik module was also removed as it was not being utilized.
Adds three new vocabulary files to the server's vocabulary directory:
`anatomy.txt`, `medications.txt`, and `substances.txt`. A README.md is
also added to explain their purpose, format, and population strategy.
The `server/vocab/raw/` directory is added to `.gitignore`.
Brummel