Add color column on location_areas table

Add validity columns on menus_specials table

Add hash column on orders and reservations table

Set order_total_id to auto increment PRIMARY key

Set PRIMARY key on user_preferences table

Create location_areas table

Create menu_categories table

Create reservation_tables table

Remove redundant/unused columns from menu_options_values.

Drop primary key order_id and add unique keys

Modify columns on orders and reservations table add processed column rename status column to status_id on reservations