@Override
	protected void init() {
		initializeServices();
		addCycleGroupActions();
		updateFavoriteActions();
	}
This plugin provides a generic method for: Applying installed data types to
create data for a program Changing an existing Data item's properties.

Currently any DataTypeProvider registered in the ServiceRegistry is displayed
in the MouseRight Pop-up menu over an undefined data item. Once a Data item
is defined, the properties associated with the data item that can be set are
displayed in the MouseRight Pop-up menu.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/data/DataPlugin.java