[BugFix] Chunk FMP Price Performance URL For Large Lists

[deeleeramone]

1. Why?:

   • For the endpoint: obb.equity.price.performance(provider="fmp") the URL string could be too long when passed a large list of symbols.

2. What? (1-3 sentences or a bullet point list):

   • This PR chunks the URL into groups of 200 symbols.
   • Add to_upper() validator for the symbol parameter of obb.etf.holdings().
   • Clear "-" as a symbol from FMP response of ETF holdings, replacing with None.

3. Impact (1-2 sentences or a bullet point list):

   • Large lists of symbols can be passed to the endpoint, with FMP as the provider.
   • Upper case symbols are not required for ETF Holdings any more.
   • Deprecate obb.etf.holdings_performance() in favour of making the user define the list of symbols themselves and use equity.price.performance() instead.

4. Testing Done:

The the list of holdings tickers in IWM as the list, it creates an error.

Before:

ContentTypeError: 0, message='Attempt to decode JSON with unexpected mimetype: text/html', url=URL...

Where the root error code is: 414 Request-URI Too Large

After: