Solr Push Endpoint Datasource and Configuration

The Solr Push Endpoint accepts documents and pushes them to Solr using the Fusion index pipelines.

In Fusion 3.0 and earlier, this is called the Push connector.

It uses the embedded JettySolrRunner to push the documents. This requires defining a port for the JettySolrRunner that is not already in use by any other process. The documents can then be sent to Fusion at that port, and they will be consumed by Fusion.