[Twig] Add direct navigate to includes and lazy value provider

Inclusions navigation of given file should provide targets for the implements. Currently navigation jumps to file that includes the tags. Also use lazy value loader for popup.

Example:
```
# foobar.html.twig
```

```
{{ include('foobar.html.twig') }}
{% embed 'foobar.html.twig' %}
...
```