Create migrations for all tables/models

[ramytamer]

Migrate all the tables and models based on this diagram.

PS: please do everything from now on as a separate migration and don't change an old one to not miss-up anything.

PPS: drop your database and start clean in order to avoid any problems with the current data migration

Some notes

• Orders table:

  1. need a seperate migration to add the tips_on_delivery column with a float type and default value of 0

• Create the migration in these order to account for foreign keys

  1. Order transactions
  2. User transactions
  3. Users orders
  4. User order item