Fix compilation if HDF5 is missing and add missing typename

src/mesh/DiamondDualMeshBuilder.cpp

src/mesh/MedianDualMeshBuilder.cpp

src/mesh/MeshRandomizer.cpp

src/mesh/MeshRelaxer.cpp

src/mesh/MeshTransformer.cpp

tests/test_ParallelChecker_read.cpp

tests/test_ParallelChecker_write.cpp