Fix issue 3734 - Make network group policies extensible.

matthew_swift

03.37.2009 95df5cfdba474acb03076953e992b898fbb277a8

opends/src/server/org/opends/server/core/networkgroups/NetworkGroupCriterion.java does not exist in tree d2c5b573fbc0ed1de0d9d8d6233cb54859f51c18