Add Network Logging Feature

Add Network Logging Feature

This is part 1 of introducing the mdc filter feature. Network
logging has to have interception points in order to pre/post
process messages coming in from a network endpoint.

The OrderedService interface and OrderedServiceImpl of the
drools-pdp project have now been migrated to common but is
also left in drools-pdp to mitigate disruption to existing
features. However for features that need to use common's
OrderedServiceImpl and drools-pdp version of OrderedServiceImpl
there will be a conflict with getSequenceNumber(). So a migration
of the other features is suggested.

Network logging is moved to its own util class so that feature
hooks can be invoked any time an event is being logged by a
network logger. This util class will also be accessible to
drools-applications in the case where drools-applications
would like to invoke network logging features for REST events.

Change-Id: I83d7c46e5abb351486f841c3be4d9009f7992476
Issue-ID: POLICY-1499
Signed-off-by: Daniel Cruz <dc443y@att.com>