Provide a python interface to set the global metadata

[CorradoMotta]

Issue:

Providing a python interface to set the global metadata if the ASV interface is not available.

Requirements:

• If possible it should use the same QML classes designed for the ASV interface.
• Global metadata should be read from the JSON file.
• It should be possible to add default values.
• Installation should be extra light

[CorradoMotta]

Steps:

Adding path for conf.ini and for csv files (either a folder or a file). Adding generation of netcdf from interface.

[CorradoMotta]

Next step:

enable the generation of netcdf from the interface itself.

[CorradoMotta]

Final step:

• Decide how to use the generation of ini file
• Update documentation

[CorradoMotta]

All done