FELIX-4265 Provides a recorder for startup events

* Exports the o.a.f.i.extender.queue.debug package
* Register a QueueEventProxy service when JVM started with 'org.apache.felix.ipojo.extender.BootstrapQueueDebug=true' system property


git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1528508 13f79535-47bb-0310-9956-ffa450edef68