Add Italian translation of full Term 1

hi,
as discussed in previous emails I have fully translated and rewritten to Italian the full Term1.
I renamed Term 1 into Trimestre_1 which is the Italian equivalent.

All the projects have been translated and where necessary and adapted rewritten by me into Italian. I did not use any translator tool.
All the projects have been implemented by me in Scratch so I got valuable insight to me to perform the translation/adaptation.

I have also translated all the scratch project to use italian name for variables etc.

Only last project has maintained english names for variables. Overall the kids they should start to get used to English :)

Let me know if something is missing