dual-fund: accepter side implementation on lightningd

wherein we add the dual_open_control functions

lightningd/Makefile

@@ -8,6 +8,7 @@ LIGHTNINGD_SRC :=				\
 	lightningd/closing_control.c		\
 	lightningd/coin_mvts.c			\
 	lightningd/connect_control.c		\
+	lightningd/dual_open_control.c		\
 	lightningd/onion_message.c		\
 	lightningd/gossip_control.c		\
 	lightningd/gossip_msg.c			\
@@ -100,6 +101,7 @@ LIGHTNINGD_COMMON_OBJS :=			\
 	common/penalty_base.o			\
 	common/per_peer_state.o			\
 	common/permute_tx.o			\
+	common/psbt_open.o			\
 	common/pseudorand.o			\
 	common/random_select.o			\
 	common/setup.o				\

lightningd/dual_open_control.h

@@ -0,0 +1,11 @@
+#ifndef LIGHTNING_LIGHTNINGD_DUAL_OPEN_CONTROL_H
+#define LIGHTNING_LIGHTNINGD_DUAL_OPEN_CONTROL_H
+
+#include "config.h"
+
+struct per_peer_state;
+
+void peer_start_dualopend(struct peer *peer,
+			  struct per_peer_state *pps,
+			  const u8 *send_msg);
+#endif /* LIGHTNING_LIGHTNINGD_DUAL_OPEN_CONTROL_H */