kwiml: provide common cm3p version header

Utilities/cm3p/kwiml/version.h

@@ -0,0 +1,11 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file LICENSE.rst or https://cmake.org/licensing for details.  */
+#pragma once
+
+/* Use the KWIML library configured for CMake.  */
+#include "cmThirdParty.h"
+#ifdef CMAKE_USE_SYSTEM_KWIML
+#  include <kwiml/version.h> // IWYU pragma: export
+#else
+#  include <KWIML/include/kwiml/version.h> // IWYU pragma: export
+#endif