News, shares, and scoring functions

NEW SF_NEWS() function for news feeds of stocks, crypto and forex/commodities. Includes batch functionality.

NEW shares function added to SF_TIMESERIES() for historical outstanding shares and float data.

NEW score function for financial scoring (Altman Z-Score and Piotroski F-Score).

Added divYield to companyInfo function, can also be batched.

Improved caching for historical PE data.

New symbols added.