[ONOS-3943] SNMP protocol and provider refactoring according to ONOS architecture

Change-Id: Ie87ee6c181c9550ffac602397f2ee74a691bbdfa
diff --git a/protocols/pom.xml b/protocols/pom.xml
index 12fbc29..85fe571 100644
--- a/protocols/pom.xml
+++ b/protocols/pom.xml
@@ -40,6 +40,7 @@
         <module>rest</module>
         <module>ospf</module>
         <module>isis</module>
+        <module>snmp</module>
     </modules>
 
     <dependencies>