bug#43866: 26.3; italian postfix additions

[Eli Zaretskii]

> From: Francesco Potortì <pot@gnu.org>
> Date: Thu, 08 Oct 2020 14:05:55 +0200
> 
> Since the inception of mule, amyyears ago, I have set up an environment
> where I switch between italian-postfix and american input methods.
> 
> Now I realise that I have made long time ago an addition to italian that
> has never gone into emacs.
> 
> The rationale is that in Italy latin-9 should be used insterad of
> latin1, which does not contain the euro symbol.  And that
> italian-postfix should allow introducing the euro symbol.

The Latin-1 vs Latin-9 part is not important nowadays, since Emacs
uses Unicode internally.

As for the Euro symbol, I guess we need to add it to all the Latin
input methods, not just the Italian one?

Thanks.