Install Solr schema from paster

When installing CKAN, the solr setup is a manual step (assuming you haven't automated the process). It would be useful if there was a paster command to tell solr where the schema is and create a new core - when Solr is installed on the same machine, this can be achieved with a single HTTP request which tells solr the name of the core and the location of the schema.

Start by locating CKAN's existing paster command entry points and the current Solr setup instructions; the issue provides no file or test names. Trace how the command would make the described HTTP request, then verify that installation can create a core and register the schema without the manual step.

Written by the indexing model from the issue text.