Added basic support for boost unit testing

langkit/unittest.cpp

@@ -0,0 +1,8 @@
+#define BOOST_TEST_DYN_LINK
+#define BOOST_TEST_MODULE boxedcpp_unittests
+#include <boost/test/unit_test.hpp>
+
+BOOST_AUTO_TEST_CASE( add_operators )
+{
+  BOOST_CHECK_EQUAL(2, 2);
+}