Add Apple Watch support

No-one seems to have a free portfolio tracker on Apple Watch at the moment, if you developed this you would be the first.

Hey! Thanks for the Feature Request! In ACCOINTING.com, we work based on a voting mechanism: the more upvotes your feature requests has, the faster it moves in our development pipeline. Hopefully, you’ll get enough upvotes from this community to have it implemented.

To see how many votes there are for a feature request simply go to the main page of the Accointing Community Board > Feature Requests > Then click ‘Votes’ to sort by most votes.