use rlock instead of lock in v1 consensus engine (#483) #87

Job	Run time
tests (A-B tests, go run build/ci.go test -coverage $(go list ./... \| grep "github.com/XinFinOrg/...	1m 23s
tests (C-[a-m] tests, go run build/ci.go test -coverage $(go list ./... \| grep "github.com/XinFin...	2m 2s
tests (C-[n-o] tests, go run build/ci.go test -coverage $(go list ./... \| grep "github.com/XinFin...	7m 22s
tests (C-[p-z] tests, go run build/ci.go test -coverage $(go list ./... \| grep "github.com/XinFin...	29s
tests (D-I tests, go run build/ci.go test -coverage $(go list ./... \| grep "github.com/XinFinOrg/...	2m 42s
tests (J-N tests, go run build/ci.go test -coverage $(go list ./... \| grep "github.com/XinFinOrg/...	2m 9s
tests (O-R tests, go run build/ci.go test -coverage $(go list ./... \| grep "github.com/XinFinOrg/...	1m 20s
tests (S tests, go run build/ci.go test -coverage $(go list ./... \| grep "github.com/XinFinOrg/XD...	1m 27s
tests (T-Z tests, go run build/ci.go test -coverage $(go list ./... \| grep "github.com/XinFinOrg/...	1m 57s
devnet_build_push	1m 40s
tag_build	0s
devnet_terraform_apply	5m 21s
rpcnode_terraform_apply	18s
testnet_dev-upgrade_node	7s
mainnet_dev-upgrade_node	7s
devnet_send_notification	5s
	28m 29s

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