Add support for dofit activity tracker

From Henk on 2017/08/09 19:25:50 +0000

Could you add support for wearables using the veryfit app, the app supports sleep tracking also

Copied from original feature request:

From Anonymous on 2018/01/23 14:32:58 +0000

I'm using VeryFit 2.0 Smartband ID107 HR

I would love to use it with the Sleep as android app.