Moved service PI classes/interfaces to appropriate package

Change-Id: I44a4aba848fd758a78a28eb484b7f579e3f22d08
diff --git a/core/api/src/main/java/org/onosproject/net/pi/service/PiPipeconfConfig.java b/core/api/src/main/java/org/onosproject/net/pi/service/PiPipeconfConfig.java
new file mode 100644
index 0000000..e8aa731
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/pi/service/PiPipeconfConfig.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2017-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.net.pi.service;
+
+import com.google.common.annotations.Beta;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.config.Config;
+import org.onosproject.net.pi.model.PiPipeconfId;
+
+/**
+ * Configuration for the PiPipeconf susbystem.
+ */
+@Beta
+public final class PiPipeconfConfig extends Config<DeviceId> {
+
+    public static final String PIPIPECONFID = "piPipeconfId";
+
+    @Override
+    public boolean isValid() {
+        return hasOnlyFields(PIPIPECONFID);
+        //TODO will reinstate after synchonization of events
+        //&& !piPipeconfId().id().equals("");
+    }
+
+    public PiPipeconfId piPipeconfId() {
+        return new PiPipeconfId(get(PIPIPECONFID, ""));
+    }
+}