Feature Request: Segmented Control / Switch Field

[jeffleeismyhero]

Re: #474 and #476

A solution for booleans and an alternative for select fields can be very helpful - especially for one or two options. Both scenarios can be resolved with a UISegmentedControl based solution.

I'm happy to tackle this next week if you'll have it.

[3lvis]

[3lvis]

Why not that one instead?

[jeffleeismyhero]

Ideally, I'd like to add support for UISwitch as well. In the meantime, UISegmentedControl fields are versatile enough to handle the UISwitch use-cases AND work well with FORM's width-based sizing.

Additionally, UISegmentedControl fields can support more than yes/no based selections.

[3lvis]

Makes sense. I guess we'll keep the Switch issues open and offer this as a workaround.