Installing the script hal_hdf5_to_fits.py

[hayalaso]

Feature Request

I notice that the script hal_hdf5_to_fits.py is part of the scripts directory. I think this should be installed when installing the library.

One way to do this is by adding, I believe, in the setup.py the following:

     scripts = ['scripts/hal_hdf5_to_fits.py'],

[torresramiro350]

This should be addressed with pull request #92