wire: adds endorsed tlv type inside the update_add_htlc

This commit introduce the wire change to the wire sysytem of core
lightning in order to implement the [1].

[1] lightning/bolts#1071

Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>

Author: vincenzopalazzo

wire/peer_wire.csv

@@ -245,6 +245,8 @@ msgdata,update_add_htlc,cltv_expiry,u32,
 msgdata,update_add_htlc,onion_routing_packet,byte,1366
 tlvtype,update_add_htlc_tlvs,blinding_point,0
 tlvdata,update_add_htlc_tlvs,blinding_point,blinding,point,
+tlvtype,update_add_htlc_tlvs,endorsed,1
+tlvdata,update_add_htlc_tlvs,endorsed,endorsed,byte,
 msgtype,update_fulfill_htlc,130
 msgdata,update_fulfill_htlc,channel_id,channel_id,
 msgdata,update_fulfill_htlc,id,u64,