hs init recv logic, + fs send init ack (not tracking it yet)

ngc_ext_common.hpp

@@ -28,7 +28,7 @@ enum _PacketType : uint8_t {
 	// - peer_key bytes (the msg_ids are from)
 	// - 1 byte (uint8_t count ids, can be 0)
 	// - array [
-	//   - msg_id bytes (the message id
+	//   - msg_id bytes (the message id)
 	// - ]
 	HS1_RESPONSE_LAST_IDS,
 
@@ -49,7 +49,7 @@ enum _PacketType : uint8_t {
 
 	// acknowlage init (like an accept)
 	// like tox ft control continue
-	// - 1 byte (temporary_file_tf_id)
+	// - 1 byte (transfer_id)
 	FT1_INIT_ACK,
 
 	// TODO: init deny, speed up non acceptance