Show up more info in expansions list

There is a fast search (see #4298) for expansions, but that lists contain only basic name. Can be added more info in comboboxes like code and release date. Example:
* Ixalan (XLN, 2017)
* Portal: Second Age (P02, 1998)
* Magic 2012 (M12, 2012)

TODO:
* [x] images download dialog;
* [ ] card viewer;
* [ ] deck editor;

This help with searching process (enter year to see sets from that year or enter code to see that set);

But need to hard work on changes (code must be compatible): added expansion data mode, not string. See #4298 for full list of comboboxes to change.