Filtering Dynamic Config Events

Change-Id: I8c6a250e5cb98d721b9708d905ec1bc8f549822c
diff --git a/apps/config/src/main/java/org/onosproject/config/ResourceIdParser.java b/apps/config/src/main/java/org/onosproject/config/ResourceIdParser.java
index f993550..802e682 100755
--- a/apps/config/src/main/java/org/onosproject/config/ResourceIdParser.java
+++ b/apps/config/src/main/java/org/onosproject/config/ResourceIdParser.java
@@ -39,6 +39,7 @@
     public static final String VAL_CHK = "\\@";
     public static final String KEY_CHK = "\\$";
     public static final String NM_CHK = "\\#";
+    public static final String EL_CHK = "\\|";
 
 
     private ResourceIdParser() {