feat: Adding token creator and a parser

package.json

 {
-  "name": "@types/security-ndjs-lib",
+  "name": "security-ndjs-lib",
   "version": "1.0.0",
   "description": "Library to manage tokens using js",
-  "types": "@types/index.d.ts",
-  "files": [
-    "@types/index.d.ts"
-  ],
+  "main": "index.js",
   "scripts": {
-    "test": "jest",
-    "build": "tsc"
+    "test": "jest"
   },
   "keywords": [],
   "author": "",
@@ -18,7 +14,6 @@
     "jsonwebtoken": "^9.0.2"
   },
   "devDependencies": {
-    "jest": "^29.7.0",
-    "typescript": "^5.6.3"
+    "jest": "^29.7.0"
   }  
 }