Fully qualified `depends_on` tap name references to HDF5 and NetCDF

HDF5 and NetCDF have been moved to homebrew/science, but unqualified references to `hdf5` and `netcdf` still abound in various formulae. This interferes with anything that inspects these formula properties – e.g. `brew` commands like `doctor`, `deps`, `uses`, &c emit (somewhat opaque) errors.

This patch qualifies the relevant `depends_on` references as e.g. `homebrew/science/hdf5` in leu of `hdf5`.