Implement EZP-22799: Configure Solr Storage engine in Symfony service container

This PR resolves issue https://jira.ez.no/browse/EZP-22799

Extracted from https://github.com/ezsystems/ezpublish-kernel/pull/792.

Indexing command and configuration are intentionally simple, as this will have a preview status.

### Follow-ups

* Use cached handlers for search handler dependencies: https://jira.ez.no/browse/EZP-22845
* Provide FieldMap service through a factory: https://jira.ez.no/browse/EZP-22846

### TODOs

- [x] Implement indexing command