## Protocol:
READERID is 5 Digits
1. Hello: Topic="fabreader", Payload="READERID"
1. Start: Topic="fabreader/READERID/startOTA", Payload=NULL
1. Request: Topic="fabreader/READERID/requestOTA", Payload=256 Bytes APDU Command
1. Response: Topic="fabreader/READERID/responseOTA", Payload=256 Bytes APDU Response
1. Stop: Topic="fabreader/READERID/stopOTA", Payload=NULL
1. Cancel: Topic="fabreader/READERID/cancelOTA", Payload=NULL

## Procedure:
After Start Reader sends "Hello".

After new Card is on Reader:
"Start" -> to Server
"Request" <- from Server
"Response" -> to Server

Repeat Request and Response until:
"Stop" <- from Server
"Cancel" -> to Server