This patch updates quadrature points support to handle xml data format
updates, specifically the change in XML file format from IdType to
Int64/Int32. Adds I/O supprt for the QUADRATURE_OFFSET_ARRAY_NAME key.
Updates the ctest to include I/O converage.

Change-Id: I13d78e8bcaa59cd0b7a51dc26e28880b2b9ec95a