Migrate Seeds Setup to Using Sequelize

[klondikemarlen]

Context

The current seeding setup is using Knex, switch to Sequelize See https://sequelize.org/docs/v6/other-topics/migrations/ See https://github.com/sequelize/umzug/issues/24#issuecomment-591313032

This will likely require building factories for the various Sequelize models. See https://github.com/icefoganalytics/sfa-client/issues/52 as an example.

Requires:

• ~https://github.com/thoughtbot/fishery~ - Deferring until I set up testing.
• ~https://github.com/faker-js/faker.~ - Deferring until I set up testing.

[klondikemarlen]

Fixed in https://github.com/icefoganalytics/elcc-data-management/pull/39