Add Recommendations Trend Summary

[bot-unit]

Add fetching of recommendations as requested from discussion

It's my first pull request (usually i don't write code for other projects, just provide help or code samples ). Tell me, if I am doing something wrong.

For future, i have plans to do some code rewriting, remove stale code, add all avalaible data from yahoo. I have my own project, that recieves more data that this lib.

Fixes #1577

[ValueRaider]

One more thing: restore/create unit test

[bot-unit]

@ValueRaider should I return pandas.Dataframe() ?
At test case it commented out and require dataframe. But I don't known if we really need dataframe for 4 elements list

[ValueRaider]

If data is tabular with 2+ rows then Pandas is best, easier to access & analyse. But do this in base.py, I want to work towards separating fetch and format.

[bot-unit]

@ValueRaider I can't move creation Dataframe to base, because all other creations are at quote now. We can plan step by step rewrite all code to new version 0.3.0 with code migration and removing old.

[ValueRaider]

Then for now, format as Pandas in fetch.

[bot-unit]

If data is tabular with 2+ rows then Pandas is best, easier to access & analyse. But do this in base.py, I want to work towards separating fetch and format.

I think, we should separate fetching, parsing and holding. So we will have ticker class as entry point, scrapers for fetching and something in middle for parsing and transforming.

[ValueRaider]

Final request - squash commits #1084. Keeps history clean.

[ValueRaider]

You branched off dev, why you merging main? https://github.com/ranaroussi/yfinance/network

[bot-unit]

@ValueRaider fixed. Sorry for my bad hands :(