Use JoinTable instead of ForeignKey
Save many to many relations into join table
Create join table when run AutoMigrate
Rename relations to associations
Add IndirectValue for Scope
Refact scope Fields
Be able to find many to many relations
improve association
Rename joinTable to relationship
Replace BeforeAssociation, AfterAssociation with association type
Make association Count works
Make association replace works
Make clear works
Update README with Associations