The build instructions are not that interesting, it's a toss-up
between CC0 and BSD-2, but because other CMake bits are BSD-2-Clause,
apply that to more CMakeLists. The copyright date isn't all that
accurate, but these are just inconsequential files.
While here, tidy up and get rid of some useless intermediates.
module builds, installs and runs, connections are not working yet.
UserQmlViewstep.cpp/h are from PR https://github.com/calamares/calamares/pull/1356
sections are commented out to make the module build, but help is needed to get those 2 files corrected.
config names used in usersq.qml are guessed from users/Config.cpp
debug window shows correct entries in GS, and under the module tab, usersq.conf is read
as should too. Running shows most config used in users.qml are not registered/wrong,
many entries like: qrc:/usersq.qml:228:13: Unable to assign [undefined] to bool
It is understood not all needed from the users module has moved to Config.cpp yet,
but doing the PR now, since it runs, doesn't crash cala and help is needed to further implement.
