feat: Adding token creator and a parser

types/index.d.ts

 import { JwtPayload } from "jsonwebtoken";
 
+/**
+    JwtPayload
+        [key: string]: any;
+        iss?: string | undefined;
+        sub?: string | undefined;
+        aud?: string | string[] | undefined;
+        exp?: number | undefined;
+        nbf?: number | undefined;
+        iat?: number | undefined;
+        jti?: string | undefined;
+ */
 declare module 'security-ndjs-lib' {
     export function createJWT(id: string, subject: object, time?: number): string;
     export function parseJWT(token?: string, id?: string): JwtPayload; // Adjust the signature if needed