Added Typescript support.
Changed to 'name' prop rather than 'modelKey' prop on FormField and adaptors. The modelKey prop will still work in plain Javascript but it won't compile in Typescript.
<FormField name='email' required>...</FormField>When initializing a Form component, calculatePrimed is a required field. Old code should still work but it won't compile in Typescript.
const [formstate, form] = useFormstate(initialFormstate, { calculatePrimed: rff.primeOnChange });