Add Deezy Class using API

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All endpoints are appreciated, but start with the EARN endpoints
https://docs.deezy.io/#tag/Earn

create a class Deezy in deezy.py
Create methods for each endpoint
Deezy API follows the OpenAPI standard, not sure if there's any tooling to generate the methods for you or if it's more of a Documentation thing.

This is the first step towards implementing a Deezy Auto Earn strategy see #7

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there's already this you can steal from: https://github.com/dannydeezy/deezy-py