Simplification
1. Remove 'db level' from objectlib (this belongs to the app!)2. change ScreenPlay's 'mObject' to be an ObjectType.
Reename ObjectList to a more logical ObjectType.
Simplify ObjectList: now there's just one object per size.
Remove all files that have been separated into a new library 'objectlib'
Prepare the 'objectlib' package to be separated into a library module
Refactoring: split the 'objects' package into two, 'objects' and 'objectlib'.The point: we're going to need to move the 'objectlib' stuff into its own library module, and that's because we're going to create a new app module which needs access to it.
Cube Control: step 2.
Rename 'state' to 'screen'