Example to demonstrate usage of `mbed_stats_cpu_get()` API usage

Revision:
15:86c93f5d67c4
Parent:
0:3114f82feb68
Child:
18:86a8fc778472
--- a/main.cpp	Mon Nov 19 21:30:35 2018 +0000
+++ b/main.cpp	Thu Nov 29 16:15:33 2018 +0000
@@ -1,3 +1,19 @@
+/* Copyright (c) 2018 Arm Limited
+*
+* SPDX-License-Identifier: Apache-2.0
+*
+* 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.
+*/
 #include "mbed.h"
 
 #if !defined(MBED_CPU_STATS_ENABLED) || !defined(DEVICE_LPTICKER) || !defined(DEVICE_SLEEP)