message: Add pretty_assertions dev dependency
diff: @@ -34,6 +34,7 @@ hdf5-derive = { path = "hdf5-derive", version = "0.6.0" } # !V
  [dev-dependencies]
  mashup = "0.1"
  +pretty_assertions = "0.6"
  rand = { version = "0.7", features = ["small_rng"] }
  regex = "1.3"
  scopeguard = "1.0"
  