Staves

staff.sql includes 4 tables

1. staff parent table, PK is staff_id
2. staff_spell joining table for many-to-many relationship, composite PK of whole row, FK for staff_id and spell_id
3. staff_trait joining table for many-to-many relationship, PK of whole row, FK of staff_id and trait_id
4. staff_activations table for a one-to-many relationship, PK of whole row, FK of staff_id

• Currently the Enervation spell is missing and as such it has a placeholder comment at line 651 #57