feat: Adding token creator and a parser

package.json

 {
-  "name": "security-ndjs-lib",
+  "name": "@types/security-ndjs-lib",
   "version": "1.0.0",
   "description": "Library to manage tokens using js",
-  "main": "index.js",
-  "types": "src/@types/security-ndjs-lib/index.d.ts",
   "scripts": {
     "test": "jest"
   },

src/@types/security-ndjs-lib/index.d.ts → types/security-ndjs-lib/index.d.ts

-declare module 'util/token' {
+declare module 'src/util/token' {
     export function createJWT(id: string, subject: object, time?: number): string;
     export function parseJWT(token: string, id?: string): string; // Adjust the signature if needed
 }
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