SOS report

Add the ability to dump the most important attributes to a file / log (configurable), e.g.:

• Max threads
• Number of rejected messages
• Size of retransmission tables (NAKACK2, UNICAST3)

This should be done periodically (e.g. every 15 minutes). This log should be enabled by default, e.g. in Infinispan.
These files can then be sent to support via an SOS report.

This can be used to diagnose issues by telling the customer to invoke this command and attach the resulting file to a ticket.