Brough implemented schema fully up-to-date with published schema

-Fix for non-iterable extents in arc-to-dpla.
-Added schema updates to arc-to-dpla and nara profile
-aggregatedCHO renamed to sourceResource
-object and isShownAt are now plain URIs rather than WebResources
-sourceResource/physicalMedium is now sourceResource/format
-collection name field renamed to title
-Removed isShownAt/format shredding for all profiles
-Updated enrich-format module to move IMTs to hasView/format only
 if hasView exists and its format is not set
-Added shredding of sourceResource/format to all profiles
-Updated all unit tests