Is your feature request related to a problem? Please describe.
Currently, SypherEngine draws polygons by using the coordinates of al the points of the polygon in order. While there are methods to move the polygon after its been rendered, there isn't a way to rotate said polygons because of the forementioned way SypherEngine (and JavaFX) handles rendering of polygons

Describe the solution you'd like
The best solution I can think of is to write an algorithm in Polygon2D that uses all the points to get the visual center and the average center of the polygon (in separate methods ofcourse), so that it can be rotated with respect to those points as the origin

Describe alternatives you've considered
As far as I know, there isn't an alternative to this