Add Controller Logging Feature

Add Controller Logging Feature

This features provides a mechanism to extend the logback.xml
properties to add controller specific loggers. The controller's
logger will log messages from topics that the controller listens
to in a controller specific network log. The original network
log is preserved and still logs every message from every controller.
Note that the way a logger is associated with a controller is by
having the logger name match the controller's name. Any configuration
file that has "logback-include-" prepended and a ".xml" extension
will be added to the logback.xml and logback-eelf.xml files as
extensions to the base configuration.

Issue-ID: POLICY-1427
Change-Id: Iaeb823421eadb7ee413b6b03ae3dfe862f230612
Signed-off-by: Daniel Cruz <dc443y@att.com>