Fix wrong function signature when compiling with HDF5 1.12 series
Fix wrong function signature when compiling with HDF5 1.12 series

This is because the function has changed its parameter in HDF5 1.12 releases.

See:
https://portal.hdfgroup.org/display/HDF5/H5O_GET_INFO
https://portal.hdfgroup.org/display/HDF5/API+Compatibility+Macros

Closes issue #23.

mateidavid/fast5,mateidavid/fast5