Add a domLens for a mutex checkbox/radio scenario

[daedalus28]

The goal is to capture this use case for radio buttons and mutex checkboxes:

{...{
  onChange: e => { field.value = e.target.value },
  value: option,
  checked: field.value == option,
}}

Given that we have checkboxValues, we probably shouldn't call it checkboxValue as that'd be too close. Likely name would be radioValue which is probably more intuitive than mutexValue

[daedalus28]

let lensEq = _.curryN(2, (value, ...lens) => F.view(...lens) == value)
export let radioValue = _.curryN(2, (value, ...lens) => ({
  value,
  checked: lensEq(value, ...lens),
  onChange: setsWith('target.value', ...lens),
}))