add support for readonly flag on collections

src/models/response/collectionResponse.ts

@@ -2,10 +2,12 @@ export class CollectionResponse {
     id: string;
     organizationId: string;
     name: string;
+    readOnly: boolean;
 
     constructor(response: any) {
         this.id = response.Id;
         this.organizationId = response.OrganizationId;
         this.name = response.Name;
+        this.readOnly = response.ReadOnly || false;
     }
 }