shell, NM model: Return connection object from add_connection method
shell, NM model: Return connection object from add_connection method

Instead of the object path.

Reviewed-by: Stef Walter <8a7fbf0f15d3ad982af54ef28f5c117d2494b76c@redhat.com>

Scribery/cockpit,firebitsbr/cockpit,arilivigni/cockpit,evol262/cockpit,nmav/cockpit,andreasn/cockpit,SotolitoLabs/cockpit,haiyangd/cockpit_view,netzvieh/cockpit,Scribery/cockpit,Armstrong1992/cockpit,denysvitali/cockpit,harishanand95/cockpit,moraleslazaro/cockpit,nmav/cockpit,stefwalter/cockpit,firebitsbr/cockpit,dperpeet/cockpit,cockpituous/cockpit,petervo/cockpit,xhad/cockpit,firebitsbr/cockpit,vanloswang/cockpit,larsu/cockpit,vbatts/cockpit,maxamillion/cockpit,firebitsbr/cockpit,dperpeet/cockpit,larskarlitski/cockpit,FireDrunk/cockpit,Armstrong1992/cockpit,Thermionix/cockpit,xhad/cockpit,nmav/cockpit,SotolitoLabs/cockpit,deryni/cockpit,jscotka/cockpit,mvollmer/cockpit,fridex/cockpit,mareklibra/cockpit,darioajr/cockpit,vbatts/cockpit,andreasn/cockpit,jscotka/cockpit,mvollmer/cockpit,denysvitali/cockpit,michalskrivanek/cockpit,FireDrunk/cockpit,cockpit-project/cockpit,garrett/cockpit,SotolitoLabs/cockpit,stefwalter/cockpit,mareklibra/cockpit,zigitax/cockpit,vanloswang/cockpit,netzvieh/cockpit,matobet/cockpit,harishanand95/cockpit,matobet/cockpit,vbatts/cockpit,evol262/cockpit,dperpeet/cockpit,martinpitt/cockpit,Scribery/cockpit,zigitax/cockpit,larskarlitski/cockpit,vanloswang/cockpit,andreasn/cockpit,deryni/cockpit,evol262/cockpit,arilivigni/cockpit,zigitax/cockpit,mareklibra/cockpit,deryni/cockpit,moraleslazaro/cockpit,netzvieh/cockpit,larskarlitski/cockpit,haiyangd/cockpit_view,sgallagher/cockpit,michalskrivanek/cockpit,larsu/cockpit,martinpitt/cockpit,fridex/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,harishanand95/cockpit,dperpeet/cockpit,deryni/cockpit,deryni/cockpit,dperpeet/cockpit,petervo/cockpit,sgallagher/cockpit,kkaempf/cockpit,SotolitoLabs/cockpit,haiyangd/cockpit_view,sgallagher/cockpit,FireDrunk/cockpit,arilivigni/cockpit,zigitax/cockpit,andreasn/cockpit,cockpituous/cockpit,moolitayer/cockpit,larsu/cockpit,moraleslazaro/cockpit,netzvieh/cockpit,Scribery/cockpit,deryni/cockpit,maxamillion/cockpit,michalskrivanek/cockpit,jscotka/cockpit,xhad/cockpit,kkaempf/cockpit,michalskrivanek/cockpit,firebitsbr/cockpit,netzvieh/cockpit,deryni/cockpit,larsu/cockpit,Thermionix/cockpit,nmav/cockpit,FireDrunk/cockpit,matobet/cockpit,jscotka/cockpit,Thermionix/cockpit,mareklibra/cockpit,haiyangd/cockpit_view,sub-mod/cockpit,arilivigni/cockpit,matobet/cockpit,vbatts/cockpit,martinpitt/cockpit,dperpeet/cockpit,maxamillion/cockpit,moraleslazaro/cockpit,SotolitoLabs/cockpit,evol262/cockpit,Scribery/cockpit,vanloswang/cockpit,arilivigni/cockpit,Armstrong1992/cockpit,mareklibra/cockpit,darioajr/cockpit,cockpit-project/cockpit,matobet/cockpit,xhad/cockpit,jscotka/cockpit,vbatts/cockpit,Armstrong1992/cockpit,xhad/cockpit,darioajr/cockpit,xhad/cockpit,mareklibra/cockpit,petervo/cockpit,stefwalter/cockpit,andreasn/cockpit,larsu/cockpit,matobet/cockpit,moolitayer/cockpit,kkaempf/cockpit,moolitayer/cockpit,michalskrivanek/cockpit,stefwalter/cockpit,michalskrivanek/cockpit,sub-mod/cockpit,Scribery/cockpit,FireDrunk/cockpit,cockpituous/cockpit,kkaempf/cockpit,Thermionix/cockpit,petervo/cockpit,larsu/cockpit,sub-mod/cockpit,garrett/cockpit,harishanand95/cockpit,petervo/cockpit,sub-mod/cockpit,larskarlitski/cockpit,harishanand95/cockpit,vbatts/cockpit,cockpit-project/cockpit,dperpeet/cockpit,SotolitoLabs/cockpit,arilivigni/cockpit,petervo/cockpit,mvollmer/cockpit,moolitayer/cockpit,cockpituous/cockpit,andreasn/cockpit,maxamillion/cockpit,sub-mod/cockpit,zigitax/cockpit,garrett/cockpit,darioajr/cockpit,mareklibra/cockpit,sgallagher/cockpit,martinpitt/cockpit,xhad/cockpit,mvollmer/cockpit,andreasn/cockpit,larskarlitski/cockpit,netzvieh/cockpit,stefwalter/cockpit,cockpit-project/cockpit,haiyangd/cockpit_view,nmav/cockpit,sgallagher/cockpit,mvollmer/cockpit,vanloswang/cockpit,denysvitali/cockpit,cockpituous/cockpit,harishanand95/cockpit,Scribery/cockpit,Thermionix/cockpit,petervo/cockpit,sgallagher/cockpit,darioajr/cockpit,sgallagher/cockpit,denysvitali/cockpit,stefwalter/cockpit,fridex/cockpit,garrett/cockpit,stefwalter/cockpit,maxamillion/cockpit,kkaempf/cockpit,evol262/cockpit,garrett/cockpit,SotolitoLabs/cockpit,fridex/cockpit,moolitayer/cockpit,larskarlitski/cockpit,Thermionix/cockpit,moraleslazaro/cockpit,michalskrivanek/cockpit,larskarlitski/cockpit,jscotka/cockpit,vanloswang/cockpit,cockpit-project/cockpit,harishanand95/cockpit,martinpitt/cockpit,denysvitali/cockpit,fridex/cockpit,evol262/cockpit,arilivigni/cockpit,moraleslazaro/cockpit,vanloswang/cockpit,Armstrong1992/cockpit,fridex/cockpit