Creates the concept of an "Ordered" target by wrapping a target and adding an index.

General Info
Name	OrderedTarget
Owner	schedblock
Visibility	public
Is Active	false
Is Abstract	false

Relations
Name	Type	Begins	Ends
unnamed	Association	ObservingGroup	OrderedTarget
unnamed	Association	OrderedTarget	Target

Attributes
Name	Type	Classifier	Default Value
index	Integer	OrderedTarget
unnamed	Target	OrderedTarget