add mpi serialization for SummaryConfig

tests/test_ParallelRestart.cpp

@@ -2358,6 +2358,24 @@ BOOST_AUTO_TEST_CASE(SummaryNode)
 }
 
 
+BOOST_AUTO_TEST_CASE(SummaryConfig)
+{
+#ifdef HAVE_MPI
+    auto node = Opm::SummaryNode{"test1", Opm::SummaryNode::Category::Region,
+                                 Opm::Location{"test2", 1}}
+                                 .parameterType(Opm::SummaryNode::Type::Pressure)
+                                 .namedEntity("test3")
+                                 .number(2)
+                                 .isUserDefined(true);
+    Opm::SummaryConfig val1({node}, {"test1", "test2"}, {"test3", "test4"});
+
+    auto val2 = PackUnpack(val1);
+    BOOST_CHECK(std::get<1>(val2) == std::get<2>(val2));
+    BOOST_CHECK(val1 == std::get<0>(val2));
+#endif
+}
+
+
 bool init_unit_test_func()
 {
     return true;