Self-initializing Factory

This release contains some small infrastructure that simplifies and automates working with Factories that provide concrete implementations of an Interface. The package contains just 2 classes: BaseEntityFactory and BaseEntity. In short what this infrastructure does is that if you create a factory that extends BaseEntityFactory and some Interface with all its concrete implementations extending BaseEntity then each your concrete implementation class instances will be automatically inserted into your factory. You won't have to worry about how and when to populate your factory. The infrastructure will do it for you when the constructor of your concrete implementation class is invoked. So all you will have to do is to create any number of concrete implementation classes and make sure that for each one constructor is invoked. After that you can use your factory to get any of your concrete implementation classes anywhere in your code.