add script to set copyright header for source files

this works for:
- C/C++ files
- files where comment is #

Change include set of simple tests.

Change-Id: I1c08c6c359e2a48957d5d81397c439508ae06c42
Signed-off-by: Artur Harasimiuk <artur.harasimiuk@intel.com>

scripts/tests/copyright/out/file2.cpp

@@ -0,0 +1,6 @@
+/*
+ * Copyright (C) 2017-2018 Intel Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */