ONOS-3972 Implemented BMv2 device provider

BMv2 devices can now be discovered (along with port informations) using
net-cfg (see tools/test/config/bmv2-cfg.json)

Change-Id: Ief2ca790dceb4d047b75aae6c5e1a89a05215e5f
diff --git a/providers/pom.xml b/providers/pom.xml
index 9ee50a3..b9bbca3 100644
--- a/providers/pom.xml
+++ b/providers/pom.xml
@@ -45,6 +45,7 @@
         <module>lldpcommon</module>
         <module>lldp</module>
         <module>netcfglinks</module>
+        <module>bmv2</module>
     </modules>
 
     <dependencies>