shell: Add code for SSH private key unlocking and password
shell: Add code for SSH private key unlocking and password

Signed-off-by: Stef Walter <8a7fbf0f15d3ad982af54ef28f5c117d2494b76c@redhat.com>
 * Brought into credentials.js, renamed a few things

martinpitt/cockpit,andreasn/cockpit,matobet/cockpit,arilivigni/cockpit,sgallagher/cockpit,Scribery/cockpit,petervo/cockpit,xhad/cockpit,arilivigni/cockpit,cockpituous/cockpit,petervo/cockpit,harishanand95/cockpit,sgallagher/cockpit,matobet/cockpit,jscotka/cockpit,dperpeet/cockpit,vanloswang/cockpit,SotolitoLabs/cockpit,garrett/cockpit,haiyangd/cockpit_view,SotolitoLabs/cockpit,matobet/cockpit,dperpeet/cockpit,stefwalter/cockpit,harishanand95/cockpit,mareklibra/cockpit,larskarlitski/cockpit,mvollmer/cockpit,arilivigni/cockpit,michalskrivanek/cockpit,larsu/cockpit,larsu/cockpit,larsu/cockpit,andreasn/cockpit,larsu/cockpit,martinpitt/cockpit,SotolitoLabs/cockpit,cockpit-project/cockpit,deryni/cockpit,sgallagher/cockpit,petervo/cockpit,moraleslazaro/cockpit,vanloswang/cockpit,mareklibra/cockpit,Scribery/cockpit,mvollmer/cockpit,vanloswang/cockpit,moraleslazaro/cockpit,dperpeet/cockpit,larskarlitski/cockpit,Scribery/cockpit,Scribery/cockpit,haiyangd/cockpit_view,Scribery/cockpit,stefwalter/cockpit,moraleslazaro/cockpit,FireDrunk/cockpit,garrett/cockpit,haiyangd/cockpit_view,mvollmer/cockpit,larsu/cockpit,dperpeet/cockpit,michalskrivanek/cockpit,mareklibra/cockpit,matobet/cockpit,michalskrivanek/cockpit,jscotka/cockpit,xhad/cockpit,harishanand95/cockpit,garrett/cockpit,harishanand95/cockpit,deryni/cockpit,mareklibra/cockpit,arilivigni/cockpit,larskarlitski/cockpit,mareklibra/cockpit,stefwalter/cockpit,SotolitoLabs/cockpit,mareklibra/cockpit,dperpeet/cockpit,SotolitoLabs/cockpit,sgallagher/cockpit,cockpit-project/cockpit,xhad/cockpit,moraleslazaro/cockpit,arilivigni/cockpit,cockpit-project/cockpit,FireDrunk/cockpit,cockpituous/cockpit,dperpeet/cockpit,mvollmer/cockpit,stefwalter/cockpit,stefwalter/cockpit,larskarlitski/cockpit,mareklibra/cockpit,xhad/cockpit,moraleslazaro/cockpit,larskarlitski/cockpit,SotolitoLabs/cockpit,sgallagher/cockpit,FireDrunk/cockpit,petervo/cockpit,deryni/cockpit,garrett/cockpit,dperpeet/cockpit,deryni/cockpit,cockpituous/cockpit,andreasn/cockpit,andreasn/cockpit,FireDrunk/cockpit,andreasn/cockpit,FireDrunk/cockpit,harishanand95/cockpit,harishanand95/cockpit,petervo/cockpit,cockpit-project/cockpit,deryni/cockpit,stefwalter/cockpit,andreasn/cockpit,michalskrivanek/cockpit,matobet/cockpit,deryni/cockpit,haiyangd/cockpit_view,mvollmer/cockpit,xhad/cockpit,harishanand95/cockpit,cockpituous/cockpit,michalskrivanek/cockpit,Scribery/cockpit,michalskrivanek/cockpit,petervo/cockpit,arilivigni/cockpit,jscotka/cockpit,xhad/cockpit,vanloswang/cockpit,larsu/cockpit,deryni/cockpit,martinpitt/cockpit,petervo/cockpit,arilivigni/cockpit,martinpitt/cockpit,michalskrivanek/cockpit,SotolitoLabs/cockpit,sgallagher/cockpit,moraleslazaro/cockpit,moraleslazaro/cockpit,vanloswang/cockpit,sgallagher/cockpit,andreasn/cockpit,cockpituous/cockpit,Scribery/cockpit,stefwalter/cockpit,cockpituous/cockpit,larskarlitski/cockpit,jscotka/cockpit,cockpit-project/cockpit,vanloswang/cockpit,vanloswang/cockpit,martinpitt/cockpit,jscotka/cockpit,xhad/cockpit,garrett/cockpit,jscotka/cockpit,matobet/cockpit,haiyangd/cockpit_view,larskarlitski/cockpit