Async HTTP Support

[Roman505050]

The synchronous code has been rewritten to be asynchronous, providing users with greater flexibility and efficiency. Asynchronous programming is a crucial aspect of modern applications, enabling concurrent operations and enhancing overall project performance.

To achieve this, the asyncio package was utilized to rewrite the KucoinBaseRestApi class asynchronously using the aiohttp library.

[ISAAC-XXYYZZ]

Impressive work! however, I cannot accept your request at the moment as I am unable to properly verify this change. meanwhile, this is indeed a poor design. We are working on an updated version of the API that will be more user-friendly and offer better abstraction capabilities, with built-in error handling and robust HTTP management. So, please stay tuned!