Write tests for large SQL queries

[seanpreston]

We want to stress test Fidesops by having the query execution layer run large (longer running) queries over identity graphs. We should generate a some SQL datasets with faker, and use them in some example access and erasure requests.

Open Questions

• Do we want this to be part of our test suite, since this will certainly add to the CI time significantly?
• Should we be using fixtures or SQL files to seed this data?
• How big should the SQL datasets get?

[iamkelllly]

There are existing integration tests that go between db integrations, but this will specifically handle a "torture test" for larger, multiple databases.