Replace boost::hash by std::hash

[DennisOSRM]

Benchmark Results

Benchmark	Base	PR
alias	aliased u32: 1144.85 plain u32: 1147.73 aliased double: 1203.45 plain double: 1206.12	aliased u32: 1145.06 plain u32: 1147.12 aliased double: 1192.15 plain double: 1221.44
json-render	String: 8.54592ms Stringstream: 11.5546ms Vector: 7.5724ms	String: 8.55746ms Stringstream: 11.7931ms Vector: 7.65687ms
match_ch	Default radius: 4.48136ms/req at 82 coordinate 0.0546507ms/coordinate Radius 5m: 4.47619ms/req at 82 coordinate 0.0545877ms/coordinate Radius 10m: 15.259ms/req at 82 coordinate 0.186085ms/coordinate Radius 15m: 36.8768ms/req at 82 coordinate 0.449718ms/coordinate Radius 30m: 313.326ms/req at 82 coordinate 3.82104ms/coordinate	Default radius: 4.46941ms/req at 82 coordinate 0.0545049ms/coordinate Radius 5m: 4.45022ms/req at 82 coordinate 0.054271ms/coordinate Radius 10m: 15.1737ms/req at 82 coordinate 0.185045ms/coordinate Radius 15m: 36.9263ms/req at 82 coordinate 0.450321ms/coordinate Radius 30m: 313.703ms/req at 82 coordinate 3.82564ms/coordinate
match_mld	Default radius: 4.02955ms/req at 82 coordinate 0.0491409ms/coordinate Radius 5m: 3.33361ms/req at 82 coordinate 0.0406537ms/coordinate Radius 10m: 12.1625ms/req at 82 coordinate 0.148324ms/coordinate Radius 15m: 31.4254ms/req at 82 coordinate 0.383237ms/coordinate Radius 30m: 350.356ms/req at 82 coordinate 4.27263ms/coordinate	Default radius: 3.3591ms/req at 82 coordinate 0.0409647ms/coordinate Radius 5m: 3.34183ms/req at 82 coordinate 0.0407541ms/coordinate Radius 10m: 12.2526ms/req at 82 coordinate 0.149422ms/coordinate Radius 15m: 31.8058ms/req at 82 coordinate 0.387876ms/coordinate Radius 30m: 348.725ms/req at 82 coordinate 4.25274ms/coordinate
packedvector	random write: std::vector 10841.6 ms util::packed_vector 74460.6 ms slowdown: 6.86805 random read: std::vector 8816.26 ms util::packed_vector 30924.7 ms slowdown: 3.50769	random write: std::vector 11452.8 ms util::packed_vector 82938.7 ms slowdown: 7.2418 random read: std::vector 11367.9 ms util::packed_vector 33705.6 ms slowdown: 2.96497
rtree	1 result: 203.53ms -> 0.020353 ms/query 10 results: 236.981ms -> 0.0236981 ms/query	1 result: 206.692ms -> 0.0206692 ms/query 10 results: 242.83ms -> 0.024283 ms/query