Fix osrm-contract, tests, on Windows

As part of graph contraction, node renumbering leads to
in-place permuting of graph state, including boolean vector elements.

std::vector<bool> returns proxy objects when referencing individual
bits. To correctly swap bool elements using MSVC, we need to explicitly
apply std::vector<bool>::swap.

Making this change fixes osrm-contract on Windows.

We also correct failing tests and other undefined behaviours
(mainly iterator access outside boundaries) highlighted by MSVC.

unit_tests/customizer/cell_customization.cpp

@@ -56,7 +56,7 @@ auto makeGraph(const MultiLevelPartition &mlp, const std::vector<MockEdge> &mock
     return partitioner::MultiLevelGraph<EdgeData, osrm::storage::Ownership::Container>(
         mlp, max_id + 1, edges);
 }
-}
+} // namespace
 
 BOOST_AUTO_TEST_SUITE(cell_customization_tests)
 
@@ -154,7 +154,7 @@ BOOST_AUTO_TEST_CASE(four_levels_test)
     };
 
     auto graph = makeGraph(mlp, edges);
-    std::vector<bool> node_filter(true, graph.GetNumberOfNodes());
+    std::vector<bool> node_filter(graph.GetNumberOfNodes(), true);
 
     CellStorage storage(mlp, graph);
     auto metric = storage.MakeMetric();