Bazel support for apps with more than one included artifact

Change-Id: I2972772517a9b5f7f1fac52b9c00123689c0881c
diff --git a/apps/mcast/BUILD b/apps/mcast/BUILD
new file mode 100644
index 0000000..42bb7b9
--- /dev/null
+++ b/apps/mcast/BUILD
@@ -0,0 +1,15 @@
+BUNDLES = [
+    "//apps/mcast/cli:onos-apps-mcast-cli",
+    "//apps/mcast/impl:onos-apps-mcast-impl",
+    "//apps/mcast/web:onos-apps-mcast-web",
+    "//apps/mcast/api:onos-apps-mcast-api",
+]
+
+onos_app(
+    title = 'Multicast traffic control',
+    origin = 'ONF',
+    description = 'Provides handling of multicast traffic.',
+    category = 'Traffic Engineering',
+    url = 'https://wiki.onosproject.org/',
+    included_bundles = BUNDLES,
+)