WATO bakery: add text field for additional/deprecated Robot Framework parameters

[simonmeggle]

• Provide a text field for additional commandline parameters.
• remove deprecated parameter --(non)critical
• at the same time, add --argumentfile parameter, see WATO: Add --argumentfile parameter  #169

[simonmeggle]

Will not add a text field for custom args. It is too obvious to do nasty things here.
For exotic command line parameters the option "argumentfile" is sufficient. (#169 )