Kessler v1.3.1 Base Release Notes

Added a new KesslerGraphics class for creating custom graphics engines and implemented minor bug fixes.

Changes:

• Fixed bug in 1.3.0 where sprites used in Tkinter graphics would not be packaged into release wheel
• Added KesslerGraphics class to allow for the creation of custom graphics display interfaces

Full Changelog
_{Note: This release includes only the base simulation environment and python (Tkinter) graphics engine. Notably it excludes a build for the Unreal Engine 5 graphics engine.}