add script to gen otp

.dockerignore

+data
+build
+keys

genkey.sh

+#!/bin/bash
+docker run -it -v "${PWD}:/app" --rm token-bridge:latest validator genkey --output keys/aes.key
+docker run -it -v "${PWD}:/app" --rm token-bridge:latest validator encrypt --in secret/val.pk --out secret/val.fpk --aes keys/aes.key
+docker run -it -v "${PWD}:/app" --rm token-bridge:latest validator onetime --in secret/val.fpk --out keys/val.otp

middleware/jwt.go

-package middleware