Implemented authentication.

Near feature complete.

U2F_Init_CMD.cpp

@@ -2,6 +2,7 @@
 #include <stdexcept>
 #include "U2FMessage.hpp"
 #include "u2f.hpp"
+#include <iostream>
 
 using namespace std;
 
@@ -17,5 +18,7 @@ U2F_Init_CMD U2F_Init_CMD::get()
 	U2F_Init_CMD cmd;
 	cmd.nonce = *reinterpret_cast<const uint64_t*>(message.data.data());
 
+	clog << "Fully read nonce" << endl;
+
 	return cmd;
 }