Add the option on path creator to specify the incoming node or channel on blinded path #16024

Job	Run time
Sqlc check	2m 43s
lint code	56s
cross compilation	31m 27s
check pinned dependencies (google.golang.org/grpc v1.59.0)	5s
check commits	2m 56s
RPC and mobile compilation check	5m 49s
check pinned dependencies (github.com/golang/protobuf v1.5.3)	4s
sample configuration check	3m 53s
run unit tests (btcd unit-cover)	5m 57s
run macOS itest	48m 56s
run unit tests (unit tags="kvdb_etcd")	19m 38s
run unit tests (unit tags="kvdb_postgres")	19m 1s
check release notes updated	5s
run unit tests (unit tags="kvdb_sqlite")	17m 24s
run unit tests (btcd unit-race)	36m 47s
run ubuntu itests (btcd, backend=btcd cover=1)	32m 43s
run unit tests (unit-module)	3m 29s
run windows itest	35m 54s
run ubuntu itests (bitcoind, backend=bitcoind cover=1)	38m 52s
run ubuntu itests (bitcoind-notxindex, backend="bitcoind notxindex")	38m 24s
run ubuntu itests (bitcoind-rpcpolling, backend="bitcoind rpcpolling" cover=1)	39m 28s
run ubuntu itests (bitcoind-etcd, backend=bitcoind dbbackend=etcd)	54m 11s
run ubuntu itests (bitcoind-postgres, backend=bitcoind dbbackend=postgres)	1h 10m 55s
run ubuntu itests (bitcoind-sqlite, backend=bitcoind dbbackend=sqlite)	41m 55s
run ubuntu itests (bitcoind-postgres-nativesql, backend=bitcoind dbbackend=postgres nativesql=true)	1h 10m 57s
run ubuntu itests (bitcoind-sqlite-nativesql, backend=bitcoind dbbackend=sqlite nativesql=true)	40m 55s
run ubuntu itests (neutrino, backend=neutrino cover=1)	36m 47s
finish	3s
	11h 40m 14s

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