Allow options/flags to be placed at multiple positions in CLI args

[rainerschoe]

Is your feature request related to a problem? Please describe.
Currently all gwhisper options and flags need to be placed before the IP address, It would be nice to have the possibility to add options ad other places.

Describe the solution you'd like
Add options before IP after IP and in the end.
maybe also in between message? this might give problems...

Describe alternatives you've considered
keep current implementation.

Describe why you think this feature is useful for gWhisper users
Users might forget to add an option and then need to scroll back to the beginning to ad an option

Additional context
this is not high priority right now, as not many options exist except gwhisper debug options.