removing test data files and test code files associated with old call number facet fields
add callnum_facet_sim  gov doc value tests and fix algorithm
move gov doc callnum_facet_sim tests out of old CallNumberTests class and into CallNumFacetSimTests
removing test code associated with old call number facet fields
add first batch of dewey tests
rename test method in CallNumberTests
dry up test code in CallNumFacetSimTests
add callnum_facet_sim tests for multiple types of call numbers
remove no-longer used callnum facet methods from StanfordIndexer
set up hiearch_string Solr fieldtype, dynamic field _hsim, and renamed new callnum facet
add integration test ensuring callnum_facet_hsim has all path values
add callnum_facet_hsim to solrconfig facets and remove old callnum facet fields