Include an empty database schema with the source code

[Ghislain Hachey]

The pacificemisdb schema should be included with the source code. It will contain a minimal amount of data in it just a lookups usually needed for the proper functioning of the system.

[Ghislain Hachey]

chore: include a up-to-date database schema

Resolves #1318

→ <<cset 6f007b580f9e>>