1e2f0ab308
This moves the QSortFilterProxyModel to the resource model files, acessible via a factory method, and moves the sorting and filtering to the objects themselves, decoupling the code a bit. This also adds a basic implementation of methods in the ResourceFolderModel, simplifying the process of constructing a new model from it. Signed-off-by: flow <flowlnlnln@gmail.com>