Sequelize Base Repository for Default CRUD without relations

This works with APIs generated with lb4 controller's CRUD Controller, currently without any inclusion filter (to include relational entities).

With working filter options such as where with operators supported by loopback and fields, order, limit, offset.

What's Changed

• feat: repository base for Sequelize containing basic methods for crud by @shubhamp-sf in #1
• refactor: make the sequelize repository compatible with lb4 repository command by @shubhamp-sf in #2

New Contributors

• @shubhamp-sf made their first contribution in #1

Full Changelog: https://github.com/shubhamp-sf/loopback-sequelize-sandbox/commits/sequelize-base-no-relation