NEPT-1534: Consider if not to rename targets into attribution

[ademarco]

We can now set attributions via the Target component, we should maybe consider to rename it into Attribution.

[imanoleguskiza]

I think I would go further and rename all the components so that they reflect better the naming they use in DGT. What do you think?

[ademarco]

I'm ok with finding better names but I would keep them in English, then I'd add a mapping table as documentation if necessary.