message: verbose logging as env PLAIDML_VERBOSE
diff: @@ -40,6 +40,13 @@ Some Notes:
  # Placeholder env var
  if os.getenv("PLAIDML_VERBOSE"):
  + # change verbose settings to PLAIDML_VERBOSE, or 4 if PLAIDML_VERBOSE is invalid
  + try:
  + arg_verbose = int(os.getenv("PLAIDML_VERBOSE"))
  + except ValueError:
  + arg_verbose = 4
  + plaidml._internal_set_vlog(arg_verbose)
  + print("INFO:Verbose logging has been enabled - verbose level", arg_verbose, "\n")
  (cfg_path, cfg_file) = os.path.split(plaidml.settings.default_config)
  (exp_path, exp_file) = os.path.split(plaidml.settings.experimental_config)
  