Added MIRI MRS gratinga and gratingb entries to the core schema. Keeping gratng14 and gratng23 for now for backwards compatibility.
Added MIRI MRS gratinga and gratingb entries to the core schema. Keeping
gratng14 and gratng23 for now for backwards compatibility.


git-svn-id: 7ab1303e5df1b63f74144546e35d3203cc1d26c5@2646 560b4ebf-6bc0-4cc5-b8e0-b136f69d22d4

mdboom/jwst_lib.models