Add recognition of interaction type long-fill-in

Author: davidells

src/main/java/com/rusticisoftware/tincan/ActivityDefinition.java

@@ -227,6 +227,7 @@ public ObjectNode toJSONNode(TCAPIVersion version) {
 
                 case TRUE_FALSE:
                 case FILL_IN:
+                case LONG_FILL_IN:
                 case NUMERIC:
                 case OTHER:
                     break;

src/main/java/com/rusticisoftware/tincan/InteractionType.java

@@ -28,6 +28,7 @@ public enum InteractionType {
     PERFORMANCE("performance"),
     TRUE_FALSE("true-false"),
     FILL_IN("fill-in"),
+    LONG_FILL_IN("long-fill-in"),
     NUMERIC("numeric"),
     OTHER("other");