STEP 1. OTP ACCOUNT GENERATE http://localhost:8080/api/otp/genAccount?userName={user name}&hostName={host name} ex) http://localhost:8080/api/otp/genAccount?userName=dev4u&hostName=dev4u.co.kr
STEP 2. Show QR Image http://localhost:8080/api/otp/getQrImage?userName={user name}&hostName={host name}&encodedKey={Step 1 Retrun value} ex) http://localhost:8080/api/otp/getQrImage?userName=dev4u&hostName=dev4u.co.kr&encodedKey=LGKNF63HGZ5XANGS
STEP 3. Auth By OTP NO http://localhost:8080/api/otp/authOtpNo?otpNo={Google Authenticator}&encodedKey={Step 1 Retrun value} ex) http://localhost:8080/api/otp/authOtpNo?otpNo=123456&encodedKey=LGKNF63HGZ5XANGS