Add support for SSLSession tracking to the org.jboss.security.ssl package

To allow use of the client cert for authentcation at the component level we need the ability to track the SSLSession associated with a connection. Maintaining a map of the session id to SSLSession using the javax.net.ssl.HandshakeCompletedListener needs to be added. The SSLSocketsUnitTestCase illustrates using this to base authentication/authorization on the connection client cert.