freecad: Please switch from deprecated opencascade to oce

[Anton Gladky]

Hi Adam,

I have updated the freecad, switching it to oce. There is only a FTBFS
on s390 and s390x platforms. Did not see it before [1].

===================
In file included from DlgRegularSolidImp.cpp:258:0:
moc_DlgRegularSolidImp.cpp:44:28: error: 'MeshGui::MeshGui' has not
been declared
===================

Do you have an idea, how to fix it?

Thanks.

[1] https://buildd.debian.org/status/package.php?p=freecad

Anton