Add device orientation to `ember sauce` options
Add device orientation to `ember sauce` options

`-o` or `--orientation` now works for `ember sauce` and goes into the name as well.
Option matches to the saucie `-do` option, see https://github.com/johanneswuerbach/saucie/blob/master/lib/argv.js#L39
johanneswuerbach/ember-cli-sauce,johanneswuerbach/ember-cli-sauce