`GET [...]/rest.php/wikibase/v0/suggest/items?language=en&q=...`
Request parameters (query parameters)
* `q` - search term
* `language` - language code
Response structure in pseudo-JSON
```
{
"results": [
{
"id": "Q123",
"label": "<LABEL in language>"
"description": "<DESCRIPTION in language>"
},
...
]
}
```
Acceptance criteria:
- consider labels and aliases in the search, same as in the other existing RESTful search
- matching item/property when its ID is provided as the query works, same as in the other existing RESTful search
- Basic functionality of language fallback and matched data are implemented
- The only sophisticated functionality to be implemented will be pagination
- Errors to be the same as in simple item search
- URL matching i.e., searching by URL works by default and should be kept that way