get_net_income() provides the Net Income of 9/29/2020 (for AAPL)

[Pietrosanguin]

Good evening,

the method get_net_income() (and also the others), should be customized in order to set up the date of the Income statement to be considered and also the type (quarter or annual). In the case of AAPL, after testing, the current method returns the Net Income of 9/29/2020, which is the first appearing on Yahoo finance.

The idea of this library is amazing. In a while I will study the package and become a contributor.
Thank you for your great help! :)

[JECSand]

@Pietrosanguin Thank you for the feedback and your willingness to contribute!