message: [libra-fuzzer] add "testing" feature for consensus-types
  This is required to make the fuzzer compile.
  Closes:
  Approved by: metajack
diff: @@ -26,11 +26,11 @@ structopt = "0.3.2"
  # List out modules with data structures being fuzzed here.
  admission-control-service = { path = "../../admission_control/admission-control-service", version = "0.1.0" }
  consensus = { path = "../../consensus", version = "0.1.0" }
  +consensus-types = { path = "../../consensus/consensus-types", version = "0.1.0", features = ["testing"] }
  libra-types = { path = "../../types", version = "0.1.0" }
  network = { path = "../../network", version = "0.1.0" }
  vm = { path = "../../language/vm", version = "0.1.0" }
  vm-runtime-types = { path = "../../language/vm/vm-runtime/vm-runtime-types", version = "0.1.0" }
  -consensus-types = { path = "../../consensus/consensus-types", version = "0.1.0"}
  [dev-dependencies]
  datatest-stable = { path = "../../common/datatest-stable", version = "0.1.0" }
  