added license text to samples CmakeLists

samples/CMakeLists.txt

@@ -1,3 +1,27 @@
+#/***************************************************************************
+# *
+# *  @license
+# *  Copyright (C) Codeplay Software Limited
+# *  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
+# *
+# *  For your convenience, a copy of the License has been included in this
+# *  repository.
+# *
+# *  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.
+# *
+# *  portBLAS: BLAS implementation using SYCL
+# *
+# *  @filename CMakeLists.txt
+# *
+# **************************************************************************/
 cmake_minimum_required(VERSION 3.4.3)
 
 project(portBLASSample LANGUAGES CXX)