Allow Groups

[mpconsultsai]

Please can this branch be pushed to master

https://github.com/mfahner-p/cisco-vpn/tree/patch-1

as it allows the option of groups - alternatively I can create a PR of this branch and update the Readme to allow for these options - thanks

[mpconsultsai]

HI I created a PR for this based on that fork - the Readme should also be updated

[MarkTiedemann]

PR #3 is work in progress.