ManagedProperties test consumer

This project is meant to simplyfy the usage of the excelent Configuration Admin and MetaType services for Felix OSGi. The bundle will create a service that allows other bundles to register an annotated interface. The ManagedProperties service will then create all the Metatype information, as well as ensuring that objects are cast to their right types. ManagedProperties also has a feature called Filters. A Filter is used to create an object, say a File, directly from a primitive Configuration Admin type. It can also contain logic, to allow the configuration to fail if, for example, a File doesn't exist.