Apache Solr Views Caching plugin

With this now part of Views #468824: Add caching system to Views we would need a special cache plugin so that the facet blocks will work. This here: http://drupal.org/cvs?commit=224746 is the first pass but it serializes the query object to the cache.

It should either, not send an object to the cache or it should instead, send a considerable smaller object to the cache, and this object needs to have all the info it needs to create the facet links.