ItemIcon is a high level icon that will dynamically choose an icon based on the iconType prop passed into it.

### Examples
**ItemIcon iconType="bookmark"**
```
<ItemIcon iconType="bookmark" />
```

**ItemIcon iconType="folder-collab"**
```
<ItemIcon iconType="folder-collab" />
```

**ItemIcon iconType="pdf"**
```
<ItemIcon iconType="pdf" />
```
