db: create a populate file to have data in local db

[ruialves35]

Currently the local database when we first run the program doesn't have any items.
It would be nice to have something to populate the database so we can see some events, projects, etc.

[BrunoRosendo]

One way to do this is creating a data.sql script under resources/: https://www.baeldung.com/spring-boot-data-sql-and-schema-sql
However, this requires writing it directly in SQL and it will get outdated very fast, so think about alternatives before implementing.

There are other approaches mentioned here: https://stackoverflow.com/questions/38040572/spring-boot-loading-initial-data
Some solutions include hard coding the initialization data but I'm not fond of changing code before deploying (resources are a different story)

[ttoino]

Another good approach may be to use a library like this one to generate random data: https://www.baeldung.com/java-faker

If reproducibility is a concern I'm sure there's a way to set the initial seed so it's the same for everyone