Add UUID for strings

[Nico-Duduf]

No description provided.

[oktomus]

What's this ?

[Nico-Duduf]

The Chinese translator of Duik suggested that it could be useful to add a unique identifier to each translated string, this could ease tracking changes, additions and deletions of the strings.

UUID can easily be generated in Qt using the QUuid class.

But this means we would have to use those uuids in the source code of Duik itself and I really don't like this idea, it would make it very hard to maintain

[oktomus]

I don't get it how it would ease tracked changes, it helps to identify what the is the translation meaning ? If that's the case, the comment already does it. And if it's not the case, I guess it generates a kind of key.