Feature BuildAnObjectWithSomethingAndSomethingElse included.
Refactoring of IBuilder into IBuilder and IBuilderFactory
Features refactored to conform to BuilderFactory definition
Playground project created
Playground sample updated
Feature BuildAnObjectWithSomethingAndSomethingElse completed
Builder refactored to actually build the object only when the Value property is accessed
Feature BuildTwoSlightlyDifferentObjectsUsingTheSameBuilder completed