Dyncomms [3/n]: Add channel epoch history tracker to handle breach scenarios #16700

Job	Run time
Sqlc check	2m 42s
cross compilation	29m 55s
check commits	49m 33s
check pinned dependencies (google.golang.org/grpc v1.59.0)	4s
lint code	55s
check pinned dependencies (github.com/golang/protobuf v1.5.3)	4s
RPC and mobile compilation check	3m 47s
sample configuration check	2m 3s
run unit tests (btcd unit-cover)	19m 41s
run macOS itest	46m 25s
run unit tests (unit tags="kvdb_etcd")	20m 57s
check release notes updated	5s
run unit tests (unit tags="kvdb_postgres")	20m 22s
run unit tests (unit tags="kvdb_sqlite")	18m 41s
run windows itest	6m 14s
run ubuntu itests (btcd, backend=btcd cover=1)	32m 40s
run unit tests (btcd unit-race)	40m 56s
run ubuntu itests (bitcoind, backend=bitcoind cover=1)	41m 28s
run unit tests (unit-module)	1m 8s
run ubuntu itests (bitcoind-notxindex, backend="bitcoind notxindex")	40m 16s
run ubuntu itests (bitcoind-rpcpolling, backend="bitcoind rpcpolling" cover=1)	41m 15s
run ubuntu itests (bitcoind-etcd, backend=bitcoind dbbackend=etcd)	54m 25s
run ubuntu itests (bitcoind-postgres, backend=bitcoind dbbackend=postgres)	1h 12m 39s
run ubuntu itests (bitcoind-sqlite, backend=bitcoind dbbackend=sqlite)	42m 41s
run ubuntu itests (bitcoind-postgres-nativesql, backend=bitcoind dbbackend=postgres nativesql=true)	1h 12m 35s
run ubuntu itests (bitcoind-sqlite-nativesql, backend=bitcoind dbbackend=sqlite nativesql=true)	43m 5s
run ubuntu itests (neutrino, backend=neutrino cover=1)	39m 23s
finish	4s
	12h 24m 3s

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