Build out initial component set

[noelwelsh]

Build out the initial components. At this level of the library, components correspond to UI components. Will also need:

• layout combinators
• some notion of forms, probably

A form indicates that a bunch of elements submit values together, has a title, and a submit button. I feel this is optional but probably useful. Maybe it should be delayed?

The focus for this library is getting UIs developed quickly, not on providing every component or customization imaginable. So there is no need to support every possible component; just a reasonable subset.

Will need to think about how reactivity is handled, as there are components that have this nature (e.g. buttons). Look at the Websharper papers, and AirStream (which I think is Scala.js only). I don't think fs2 is suitable for UIs. Glitches, for example, are a problem in UIs.

Relevant resources:

• HTML input components
• Massive collection of UI components
• SAP UI components
• Visual guide to Swing components

[noelwelsh]

Laying out next steps to close this:

• [x] Form abstraction
• [x] Beside combinator

At this point things will not be perfect. Need to get the library built, get experience, and iterate.