Update useBem hook

[RVitaly1978]

Now we have:

const { createModifiersClasses } = useBem('va-input')
const computedClasses = createModifiersClasses(() => ({
  success: props.success,
  focused: props.focused,
  error: props.error,
}))

we want something like this

const computedClasses = useBem('va-input', () => pick(props, ['success', 'focused', 'error']))

After update this hook can be useful in useForm hook #1851 (review)