Provably random raffle contracts

about

This code is to create provably random smart contract lottery.

What it does

1. Users can enter by paying for a ticket.
   1. The ticket fees are gooing to go to the winner after the draw.
2. After X period of time, Lottery will automatically draw a winner
   1. And this will be done programatically.
3. Using chainlink vrf and automation.
   1. Chainlink VRF -> randomness
   2. Chainlink automation -> Time based trigger

Tests!

1. Write some deploy scripts.
2. Write our tests