AETHER-233 Move IntProgrammable behavior to core APIs

Before, the behavior interface and other concrete classes used it by
were part of the inbandtelemetry app. To make this behavior available to
third-party apps (such as the fabric-tna pipeconf), we move it to the
core APIs.

In this process, we do some clean-up of the behavior API. For example,
we remove references to network-level semantics (as behaviors should
only abstract device-level ones). That helps in reducing the number of
classes required to maintain in the core.

Change-Id: I3ba24ea93cdfea115cee454d5e921e15ec17eee9
diff --git a/core/api/src/main/java/org/onosproject/net/behaviour/inbandtelemetry/package-info.java b/core/api/src/main/java/org/onosproject/net/behaviour/inbandtelemetry/package-info.java
new file mode 100644
index 0000000..fcbdf71
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/behaviour/inbandtelemetry/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2015-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.
+ */
+
+/**
+ * Behaviors abstracting devices supporting in-band network telemetry.
+ */
+package org.onosproject.net.behaviour.inbandtelemetry;