Hello Mattia,

apologies for the exceptionally long delay in treating your patches,
which are very nice and well prepared.

I have slightly adapted libe57format. For the license, I kept only
boost1.0, as this is given in the licence file and also in a few headers
I checked. I have tried to make the tests work - it is possible to add
the external test data in a separate origin, but even then there are
complaints about googletest not working. So I have updated the
explanations, removed the googletest native input and kept the tests
disabled.

This one is pushed.

For cloudcompare, please find a v2 attached. The git tag did not
correspond to the version, and the licence is gpl2+ ("or later").

I wonder whether the recursive git download is the way to go, or whether
it does not pull bundled libraries that we had better unbundle? A few of
the submodules contain "extern" in their name. For instance, it looks as
if there is a second copy of libe57format that is downloaded.

I also wonder whether the mixture of qt@5 and qt@6 packages is a good
idea.

In any case, the package compiles, and the binary starts.

What do you think?

Andreas