Implement bare-bones of Django x Web3 App

[marsskop]

db done https://github.com/marsskop/pekoe-dapp/issues/2

views:

• index (list all cafes)
• cafe (cafe info + list all waiters)
• cafe administration page? to add/delete waiters/show transactions
• waiter (info, tip button, transactions from logged in customer)
• current user (view/edit info, list of transactions)
• registration (login, logout, password reset/change) <- better use OTP for fast use keep in mind that QR codes will be used mainly