Detangling incubator: virtual nets, tunnels, resource labels, oh my

- virtual networking moved to /apps/virtual; with CLI & REST API
- tunnels and labels moved to /apps/tunnel; with CLI & REST API; UI disabled for now
- protobuf/models moved to /core/protobuf/models
- defunct grpc/rpc registry stuff left under /graveyard
- compile dependencies on /incubator moved to respective modules for compilation
- run-time dependencies will need to be re-tested for dependent apps

- /graveyard will be removed in not-too-distant future

Change-Id: I0a0b995c635487edcf95a352f50dd162186b0b39
diff --git a/apps/tunnel/app/src/main/java/org/onosproject/incubator/net/resource/label/cli/GlobalLabelReleaseCommand.java b/apps/tunnel/app/src/main/java/org/onosproject/incubator/net/resource/label/cli/GlobalLabelReleaseCommand.java
new file mode 100644
index 0000000..3a692be
--- /dev/null
+++ b/apps/tunnel/app/src/main/java/org/onosproject/incubator/net/resource/label/cli/GlobalLabelReleaseCommand.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.incubator.net.resource.label.cli;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.incubator.net.resource.label.LabelResourceId;
+import org.onosproject.incubator.net.resource.label.LabelResourceService;
+
+@Service
+@Command(scope = "onos", name = "global-label-release",
+description = "Releases labels to global label resource pool.")
+public class GlobalLabelReleaseCommand extends AbstractShellCommand {
+    @Argument(index = 0, name = "releaseLabelIds",
+            description = "Represents for the label ids that are released. They are splited by dot symbol",
+            required = true, multiValued = false)
+    String releaseLabelIds = null;
+
+    @Override
+    protected void doExecute() {
+        LabelResourceService lrs = get(LabelResourceService.class);
+        Set<LabelResourceId> release = new HashSet<LabelResourceId>();
+        String[] labelIds = releaseLabelIds.split(",");
+        LabelResourceId resource = null;
+        for (int i = 0; i < labelIds.length; i++) {
+            resource = LabelResourceId.labelResourceId(Long.parseLong(labelIds[i]));
+            release.add(resource);
+        }
+        lrs.releaseToGlobalPool(release);
+    }
+
+}