rpcserver+lncli: add ability to create encrypted debug information package #12569

Job	Run time
RPC and mobile compilation check	6m 34s
cross compilation	11m 46s
lint code	8m 1s
check commits	2m 30s
Sqlc check	3m 52s
check pinned dependencies (google.golang.org/grpc v1.56.3)	5s
sample configuration check	4m 19s
check pinned dependencies (github.com/golang/protobuf v1.5.3)	4s
run unit tests (btcd unit-cover)	17m 1s
run unit tests (unit tags="kvdb_etcd")	18m 44s
check release notes updated	3s
run unit tests (unit tags="kvdb_postgres")	17m 5s
run ubuntu itests (btcd, backend=btcd)	47m 5s
run unit tests (unit tags="kvdb_sqlite")	16m 29s
run ubuntu itests (bitcoind, backend=bitcoind)	56m 35s
run windows itest	1h 1m 55s
run unit tests (btcd unit-race)	35m 13s
run ubuntu itests (bitcoind-notxindex, backend="bitcoind notxindex")	57m 43s
run unit tests (unit-module)	4m 16s
run ubuntu itests (bitcoind-rpcpolling, backend="bitcoind rpcpolling")	58m 0s
run ubuntu itests (bitcoind-etcd, backend=bitcoind dbbackend=etcd)	1h 12m 18s
run ubuntu itests (bitcoind-postgres, backend=bitcoind dbbackend=postgres)	1h 27m 18s
run ubuntu itests (bitcoind-sqlite, backend=bitcoind dbbackend=sqlite)	59m 33s
run ubuntu itests (neutrino, backend=neutrino)	54m 47s
	11h 41m 16s

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