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.
- link the library privately -- the public API uses QVariantMap
- install FindYAMLCPP just in case
- add yamlcpp explicitly in the few places that really need it
(e.g. netinstall testing the parsing of netinstall.yaml)
- Add initial definition of Config object, which will extract the model-
setting and loading code from the page, and which is also prep-work
for a QML version of this module.
- While here, remove superfluous code
- Just some simple tests for the Items
- Test creation of package group from variant
- This needs Qt5::Gui to link because QStandardItem is a GUI class,
although we can run the tests without a GUI.
