new: Added option to sort messages by timestamp

[pamburus]

• New options
  • Sort messages chronologically
    -s, --sort
  • Show input number and/or input filename before each message [default: auto]
    --input-info [auto|none|full|compact|minimal]
    • auto selects compact mode in case more that one input file is specified
    • none disables output of any information about input files
    • full shows input number and full input file name
    • compact shows input number and input file name in shortened form excluding the common prefix and a part in the middle to fit in 34 characters
    • minimal shows only input number allowing to distinguish messages from different inputs
  • Specify output file
    • -o, --output <filename>