Add and send certificates of representation to tell people what our valid upstreams are. These are not used yet but will be needed for future privacy modes, etc. Also some cleanup.

node/IncomingPacket.cpp

@@ -37,6 +37,7 @@
 #include "Cluster.hpp"
 #include "Node.hpp"
 #include "CertificateOfMembership.hpp"
+#include "CertificateOfRepresentation.hpp"
 #include "Capability.hpp"
 #include "Tag.hpp"
 #include "Revocation.hpp"
@@ -445,6 +446,14 @@ bool IncomingPacket::_doOK(const RuntimeEnvironment *RR,const SharedPtr<Peer> &p
 					}
 				}
 
+				// Handle COR if present (older versions don't send this)
+				if ((ptr + 2) <= size()) {
+					//const unsigned int corSize = at<uint16_t>(ptr); ptr += 2;
+					ptr += 2;
+					CertificateOfRepresentation cor;
+					ptr += cor.deserialize(*this,ptr);
+				}
+
 				TRACE("%s(%s): OK(HELLO), version %u.%u.%u, latency %u, reported external address %s",source().toString().c_str(),_path->address().toString().c_str(),vMajor,vMinor,vRevision,latency,((externalSurfaceAddress) ? externalSurfaceAddress.toString().c_str() : "(none)"));
 
 				if (!hops())