Working text facet

src/client/components/facet_bar/FacetBar.js

src/client/components/facet_bar/HierarchicalFacet.js

src/client/components/facet_bar/TextFacet.js

src/client/epics/index.js

src/client/reducers/helpers.js

src/client/reducers/manuscriptsFacets.js

src/server/index.js

src/server/sparql/FacetConfigs.js

src/server/sparql/FacetResults.js

src/server/sparql/FacetValues.js

src/server/sparql/Filters.js

src/server/sparql/SparqlQueriesPrefixes.js