v1.2.1

Functional changes

• Added "infection" example to demonstrate movement on a spatial network. In order to avoid a large increase in package dependencies, the spatial domain implementation (GeospatialGraph) is contained within the example, not the neworder package itself.
• Improved and extended "boids" examples, now with 2d and 3d versions
• added functionality to StateGrid to translate positions according to the given edge behaviour
• python 3.9 and below are no longer supported

Internal changes

• updates to CI

bugfixes

• fixed display issue with n-body example