fix(deno): exception default param values

Author: TorstenDittmann

templates/deno/src/exception.ts.twig

@@ -3,7 +3,7 @@ export class {{ spec.title | caseUcfirst}}Exception {
     code: Number;
     response: any;
 
-    constructor(message: String, code: Number, response: any) {
+    constructor(message: String, code: Number = 0, response: any = "") {
         this.message = message;
         this.code = code;
         this.response = response;