ONOS-4420 Implemented BMv2 packet provider

Also, moved DeviceId generation logic from Bmv2DeviceProvider to
Bmv2Device.

Change-Id: I0a7af6d558d054604038a858dce67a2d287bcde3
diff --git a/providers/bmv2/app/features.xml b/providers/bmv2/app/features.xml
index 8886c0c..f13d07c 100644
--- a/providers/bmv2/app/features.xml
+++ b/providers/bmv2/app/features.xml
@@ -20,6 +20,7 @@
         <feature>onos-drivers-bmv2</feature>
         <bundle>mvn:${project.groupId}/${project.artifactId}/${project.version}</bundle>
         <bundle>mvn:${project.groupId}/onos-bmv2-provider-device/${project.version}</bundle>
+        <bundle>mvn:${project.groupId}/onos-bmv2-provider-packet/${project.version}</bundle>
         <bundle>mvn:org.apache.thrift/libthrift/0.9.3</bundle>
         <bundle>mvn:${project.groupId}/onos-bmv2-protocol/${project.version}</bundle>
     </feature>