FELIX-4095 Add CDI-like @Stereotype

* All iPOJO annotations can nom be used on other annotations (ANNOTATION_TYPE)
* New @Stereotype meta annotation
* Stereotype related bindings are placed before generics bindings (that means that they have priority)
* Added integration tests
* Notice that this feature works at the moment with bnd-ipojo-plugin (except if the @Stereotype is in the manipulated bundle), other front-ends (maven, ant, cli, ...) will be updated soon

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1489041 13f79535-47bb-0310-9956-ffa450edef68