- added `Group::find_in`, `Version::find_in` and `Version::find_group` methods
to both `wine` and `dxvk` mods
- `get_downloaded` now returns list of groups with downloaded versions
instead of just a single list
- added `features` property to `Group` structs of `wine` and `dxvk`
- added support of `[group].features.env` variables to `game::run`
- `ComponentsLoader` now caches `get_wine[dxvk]_versions` output
- `Config::try_get_selected_wine[dxvk]_info`
renamed to `Config::get_selected_wine[dxvk]`