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.

include/partitioner/multi_level_partition.hpp

@@ -164,11 +164,11 @@ template <storage::Ownership Ownership> class MultiLevelPartitionImpl final
     // of cell ids efficiently.
     inline NodeID GetSentinelNode() const { return partition.size() - 1; }
 
-    void SetCellID(LevelID l, NodeID node, std::size_t cell_id)
+    void SetCellID(LevelID l, NodeID node, CellID cell_id)
     {
         auto lidx = LevelIDToIndex(l);
 
-        auto shifted_id = cell_id << level_data->lidx_to_offset[lidx];
+        auto shifted_id = static_cast<std::uint64_t>(cell_id) << level_data->lidx_to_offset[lidx];
         auto cleared_cell = partition[node] & ~level_data->lidx_to_mask[lidx];
         partition[node] = cleared_cell | shifted_id;
     }