Refactored initialization to allow custom ingestion of test data. Added samples demonstrating usage of:
- @Highlight for highlighting fragments.
- @Boost for boosting search terms.
- @Score to indicate interest in document score.
- SolrOperations#getById for realtime-get.
Added sample using deep pagination with cursor and one for managed schema support. Added JUnit rule checking that Solr is up and running.
Original pull request: #12.