Create a new MctManager object which is used as the anchor for getting
or setting MctAppFilters.
This changes the API naming around quite a bit, but doesn’t really
change its behaviour or functionality — see the tests for examples of
how little things change.
This is one step on the way to emitting a signal (from MctManager) when
a user’s parental controls change.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://gitlab.freedesktop.org/pwithnall/malcontent/issues/1