hypervolume multi objective integration in progress

CMakeLists.txt

external/hypervolume/CMakeLists.txt

external/hypervolume/avl.c

external/hypervolume/avl.h

external/hypervolume/hv.c

external/hypervolume/hv.h

src-bin/CMakeLists.txt

src-bin/tspNSGA2BiObjective.cpp

src/opt/checkpoint/ArchiveCheckpoint.h

src/opt/checkpoint/ArchiveCheckpoint.tpp

...t/manySolutions/metrics/MultiObjectiveHypervolumeMetric.h

src/util/ArchiveMetricHelper.h

tests/CMakeLists.txt

...ions/metrics/MaximisationObjectiveHypervolumeMetricTest.h

...ions/metrics/MinimisationObjectiveHypervolumeMetricTest.h

tests/unit_tests/tests.h