* Add `calculator` function to show pnl for calls and puts
* calculator improvement
* breaking up op into different submenus
* Yfinance functions/plots added
* Refactored Tradier menu into new controller
* Added tradier historical options and fix crypto candles
* Clean up files and get rid of selenium dependecne
* ReadME 1
* calculator plot
* Redefine main menu structure to get rid of sub menus.
* Merge main + update gst readme
* Add coloring to chain command and update readme images
* Add historical greeks
* added ion
* Fix up basic calculator
* Clean up error messages and yf defaults when tradier key not present. Extend `exp` to allow date entry
* add new line
