Rename L2 load balancer to port load balancer

CLI commands are also renamed to plbs, plb-add and plb-remove

Change-Id: I4c26b390acc5a961594a1dca92a76bee2148c090
diff --git a/apps/portloadbalancer/BUILD b/apps/portloadbalancer/BUILD
new file mode 100644
index 0000000..3b5301e
--- /dev/null
+++ b/apps/portloadbalancer/BUILD
@@ -0,0 +1,19 @@
+COMPILE_DEPS = CORE_DEPS + KRYO + CLI + [
+    "//core/store/serializers:onos-core-serializers",
+]
+
+TEST_DEPS = TEST_ADAPTERS
+
+osgi_jar_with_tests(
+    karaf_command_packages = ["org.onosproject.portloadbalancer.cli"],
+    test_deps = TEST_DEPS,
+    deps = COMPILE_DEPS,
+)
+
+onos_app(
+    app_name = "org.onosproject.portloadbalancer",
+    category = "Utilities",
+    description = "Port Load Balance Service",
+    title = "Port Load Balance Service",
+    url = "http://onosproject.org",
+)