maintain db of peers

src/newcoin.proto

@@ -9,6 +9,8 @@ enum MessageType {
 // network presence detection
 	mtGET_CONTACTS=			10;
 	mtCONTACT=				11;
+	mtGET_PEERS=			12;
+	mtPEERS=				13;
 
 // operations for 'small' nodes
 	mtSEARCH_TRANSACTION=	20;
@@ -150,6 +152,19 @@ message TMGetContacts {
 	optional uint32 nodeCount		=2; // get some random nodes
 }
 
+message TMGetPeers {
+	required uint32 doWeNeedThis	=1;  // yes since you are asserting that the packet size isn't 0 in PackedMessage
+}
+
+message TMIPv4EndPoint {
+	required uint32 ipv4				= 1;
+	required uint32 ipv4Port			= 2;
+}
+
+message TMPeers {
+	repeated TMIPv4EndPoint nodes		=1;
+}
+
 
 message TMSearchTransaction {
 	required uint32 maxTrans	=1;