build: teach macdeploy the -translations-dir argument, for use with static qt
build: teach macdeploy the -translations-dir argument, for use with static qt

When QT is linked statically, macdeploy can't infer its paths. While plugins
and frameworks don't need to be packaged, translations still do (for now).

wastholm/bitcoin,wastholm/bitcoin,wastholm/bitcoin,wastholm/bitcoin,wastholm/bitcoin,wastholm/bitcoin