Add buildmimic code for MIMIC-IV-Note

[alistairewj]

Discussed in https://github.com/MIT-LCP/mimic-code/discussions/1490

^{Originally posted by **fantamanatee** February 19, 2023} In the [Load MIMIC-IV into a PostgreSQL database tutorial](https://github.com/MIT-LCP/mimic-code/tree/main/mimic-iv/buildmimic/postgres#load-mimic-iv-into-a-postgresql-database), I noticed note events are not included. Since MIMIC IV note was published on Jan 6, is it possible to include MIMIC IV note data in a local postgresql database (while also following the postgresqk tutorial)?

TODO:

• [ ] Add schema for discharge, discharge_detail, radiology, radiology_detail tables
• [ ] Add load scripts
• [ ] Consider database systems other than psql