Mouse Interaction for Zooming and Panning in SDL Application

[Suchit1938]

SDL application that involves scrolling and zooming.

Expected Behavior :-

Mouse wheel should zoom in and out of the texture using both keyboard and mouse interactions.
Left-click drag should pan the view smoothly.
Points should move randomly within the texture.

[Suchit1938]

Hi, @Michael-Calce . Plz, assign this to me as I am currently learning SDL2.
and also I am Eager to contribute under hacktoberfest.