First pass on multinetwork framework

Starting to switch netd to use NetId.
Adding the Network identifying class

bug:13550136
Change-Id: Ie0db4fb17c9300bfafb63329adfa02339911b33d
diff --git a/core/java/android/net/Network.aidl b/core/java/android/net/Network.aidl
new file mode 100644
index 0000000..73ba1af
--- /dev/null
+++ b/core/java/android/net/Network.aidl
@@ -0,0 +1,20 @@
+/*
+**
+** Copyright (C) 2014 The Android Open Source Project
+**
+** 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 android.net;
+
+parcelable Network;