Adding defaults for other references

Author: glenrobson

schema/iiif_3_0.json

@@ -689,7 +689,8 @@
                     "properties": {
                         "type": {
                             "type": "string",
-                            "pattern": "^Range$"
+                            "pattern": "^Range$",
+                            "default": "Range" 
                         }
                     }
                 }
@@ -703,7 +704,8 @@
                     "properties": {
                         "type": {
                             "type": "string",
-                            "pattern": "^Canvas$"
+                            "pattern": "^Canvas$",
+                            "default": "Canvas" 
                         },
                         "partOf": {
                             "$ref": "#/classes/partOf"
@@ -727,7 +729,8 @@
                             "properties": {
                                 "type": {
                                     "type": "string",
-                                    "pattern": "^AnnotationPage$"
+                                    "pattern": "^AnnotationPage$",
+                                    "default": "AnnotationPage" 
                                 }
                             }
                         }