Neighborly 0.10.0

Neighborly is finally feature complete. After a long period of instability, this is the most stable and performant version yet.

This version is not compatible with any of the previous 0.9.x versions

• The package has been restructured again to prevent circular dependencies. Classes are
  now separated into subpackages/modules by function. For example, all the component
  classes are within neighborly.components all the factories are within
  neighborly.factories and all the default systems are within neighborly.systems.
• The default plugins under neighborly.plugins.defaults.xxxx have been restructured
  to allow people to more easily include only the content they need. If you do not care
  about the specific plugins, neighborly.plugins.defaults.all will import all the
  default plugins into the simulation.
• Content libraries are now static class instances.
• GameObject prefabs should now be instantiated using the GameObjectFactory class
  rather than using the Prefab-specific libraries (CharacterLibrary, BusinessLibrary,
  and ResidenceLibrary).

Added

• Content authoring neighborly.decorators for use in single file simulations.
• py.typed stub file to remove PyRight warning about Neighborly missing type stubs
• SystemGroups were added to allow better systems ordering. The simulation update loop
  is now separated into 4 phases (initialization, early-update, update, and
  late-update).
• Utility-based behavior trees for goals
• Event callbacks are called directly from GameObjects instead of via systems
• Events are an integral part of the ECS

Updated

• Content loading functions no longer need the world instance passed when loading assets

Removed

• Prefab-specific libraries (CharacterLibrary, BusinessLibrary, and ResidenceLibrary) and replaced
  them with the GameObjectFactory static class that handles instantiating GameObjects from prefabs