SimpleListItem

Add support for SimpleListItem

Example Usage:

app.js

```javascript
Ext.application({
    requires: [
        ...
        'Ux.locale.override.st.dataview.component.SimpleListItem',
        ....
    ]
});
```

setup store for list:

```javascript
store: {
    fields: ['title'],
    data: [
        {
            locales: {
                title: 'foo.bar1'
            }
        },
        {
            locales: {
                title: 'foo.bar2'
            }
        }
    ]
}
```