Log changes to reduce logging noise

This change is to reduce the volume of logging when configured. The change added a new logger Debug definition of DEBUG_DEBUG. Syslog levels of DEBUG and INFO can be filtered out using the Levels.

I also changed the include/exclude route logs to be logged at LOG_DEBUG. We have customers with a large number of defined routes. This was consuming a lot of CPU to log these routes for each connected session. Signed-off-by: Russell Young ruyoung@microsoft.com