REFACTOR: Replace Yahoo module with Prices module

[poivronjaune]

To have a more generic package with multiple sources of historical price data, refactor the module to offer more that yahoo as a historical price extracter. Other possible sources of data:

• Financial Modeling API : https://site.financialmodelingprep.com/developer/docs/#Stock-Historical-Price
• Poligon.io : https://polygon.io/pricing
• Fyers API : https://myapi.fyers.in/docs