handle Geoshape BOX and initial multi-language parsing of JSON-LD

[jmckenna]

• handle GeoShape: Box
• handle case where the Box coordinates are actually a single point
  • Solr Spatial rejects this
  • in that case buffer the point to create a polygon instead
• handle SpatialCoverage
• parse @language values initially for en values
  • checks name, description, keywords