packages/alfred-json: added package

Signed-off-by: Tim Niemeyer <tim@tn-x.org>
- Changed subject
- Move alfred-json to own repo
Reviewed-by: Fabian Bläse <fabian@blaese.de>
Tested-by: Fabian Bläse <fabian@blaese.de>
Reviewed-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Reviewed-by: Robert Langhammer <rlanghammer@web.de>
Tested-by: Robert Langhammer <rlanghammer@web.de>