Create multi mode combobox

[Barsnes]

API will be similar to Suggestion. We will use u-tags.

It will display chips, always before the input. We will not let the user render chips themselves, but we will let them customize how they look:

<*.Chips
  render={(..) => return JSX}
/>

By default, creation mode is turned off, consumers can turn this on.

Designers will investigate how it will look visually. Today our multiple mode combobox has a checkbox before each option. we are unsure if we still want/need this.