add debug line to the canonicalizer request because in escher-cli project, it is really hard to debug signature mismatch problems without the canonicalized request
add debug line to the canonicalizer request because in escher-cli project, it is really hard to debug signature mismatch problems without the canonicalized request

adamluzsi/escher-go,adamluzsi/escher-go,adamluzsi/escher-go,EscherAuth/escher