feat(smartjwt): Add nested JWT functionality

ts/smartjwt.plugins.ts

@@ -1,8 +1,9 @@
 // @pushrocks scope
 import * as smartcrypto from '@push.rocks/smartcrypto';
 import * as smartguard from '@push.rocks/smartguard';
+import * as smartjson from '@push.rocks/smartjson';
 
-export { smartcrypto, smartguard };
+export { smartcrypto, smartguard, smartjson };
 
 // thirdparty scope
 import jsonwebtoken from 'jsonwebtoken';