Add kiwi lib

thirdparty/include/kiwi/kiwi.h

@@ -0,0 +1,19 @@
+/*-----------------------------------------------------------------------------
+| Copyright (c) 2013-2017, Nucleic Development Team.
+|
+| Distributed under the terms of the Modified BSD License.
+|
+| The full license is in the file LICENSE, distributed with this software.
+|----------------------------------------------------------------------------*/
+#pragma once
+#include "constraint.h"
+#include "debug.h"
+#include "errors.h"
+#include "expression.h"
+#include "shareddata.h"
+#include "solver.h"
+#include "strength.h"
+#include "symbolics.h"
+#include "term.h"
+#include "variable.h"
+#include "version.h"