Dynamically generate Items for Menu

**Do you want to request a *feature* or report a *bug*?**
This *may* be a feature request, or I may simply be missing something.
**What is the current behavior?**
Currently, you have to explicitly define the specific Items to render as JSX components. I'm attempting to get the passed props in a component so I can render a dynamic list.

To clarify, I am trying to use this in MySeparateComponent:
```jsx
const { show } = useContextMenu({
id: 'my-separate-component'
});

//...

const onContextClick = (ev) => {
show(ev, {
items: [itemA, itemB, itemC,]
})
}
```

And then I want to access the `items` array in the context menu to generate the list of Items:
```jsx
function MyCustomContextMenu(props) {

const handleItemClick = (itemClicked) => {
//... (Do something with the item that was passed from props)
}

return (

{props.items.map(( item, index ) => handleItemClick(item)} key={index}>{item.name})}

}
```

Am I missing something? Or is this outside the scope of this library?