Support Solr 10/default deployment (keep 9 commented for those not inclined to reindex/just updating)

[DiegoPino]

What?

Solr 10. Need to do some performance testing though and change all XMLs/field definitions that need it

Also see https://github.com/dbmdz/solr-ocrhighlighting/pull/508/changes (why I waited, so happy!)

@alliomeria