[Feature] Add yfinance To equity.screener

[deeleeramone]

1. Why?:

   • How to find stocks from India with OpenBB.

2. What?:

   • Adds some basic screening (about the same as FMP's functionality) to the openbb-yfinance provider.
     • Global stocks coverage
     • Filters for:
       • country - 2-letter ISO country code.
       • exchange - 3-letter code that might be the same as FMP's?
         • Future project would be to standardize the exchanges so all providers use ISO MIC codes.
       • sector - GICS sector classifications.
       • industry - as well as some "Industry Groups".
       • mktcap min/max
       • price min/max
       • volume min/max
       • beta min/max

3. Impact:

   • Adds coverage to the screener endpoint.

4. Testing Done:

   • Unit/integration

How to find stocks from India:

obb.equity.screener(provider="yfinance", country="in", volume_min=1, limit=0).to_df()