schema: Update network schema.
schema: Update network schema.

Make things a bit more readable, and properly handle forward mode 'route'.

cbosdo/libvirt,dumbbell/libvirt,warewolf/libvirt,zippy2/libvirt,agx/libvirt,danwent/libvirt-ovs,rbu/libvirt,rmarwaha/libvirt,danwent/libvirt-ovs,amery/libvirt-vserver,taget/libvirt,jardasgit/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,zhlcindy/libvirt-1.1.4-maintain,libvirt/libvirt,novel/fbsd-libvirt,iam-TJ/libvirt,siboulet/libvirt-openvz,foomango/libvirt,novel/fbsd-libvirt,emaste/libvirt,elmarco/libvirt,usc-isi/libvirt,amery/libvirt-vserver,VenkatDatta/libvirt,rmarwaha/libvirt,emaste/libvirt,eskultety/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,kantai/libvirt-vfork,wiedi/libvirt,kantai/libvirt-vfork,zhlcindy/libvirt-1.1.4-maintain,fabianfreyer/libvirt,novel/fbsd-libvirt,shugaoye/libvirt,taget/libvirt,zippy2/libvirt,crobinso/libvirt,novel/fbsd-libvirt,rmarwaha/libvirt1,warewolf/libvirt,eskultety/libvirt,andreabolognani/libvirt,eskultety/libvirt,zhlcindy/libvirt-1.1.4-maintain,wiedi/libvirt,eskultety/libvirt,foomango/libvirt,emaste/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,soulxu/libvirt-xuhj,dumbbell/libvirt,agx/libvirt,foomango/libvirt,danwent/libvirt-ovs,nertpinx/libvirt,libvirt/libvirt,soulxu/libvirt-xuhj,olafhering/libvirt,shugaoye/libvirt,warewolf/libvirt,wiedi/libvirt,danwent/libvirt-ovs,andreabolognani/libvirt,trainstack/libvirt,datto/libvirt,siboulet/libvirt-openvz,rmarwaha/libvirt1,usc-isi/libvirt,leilihh/libvirt,VenkatDatta/libvirt,agx/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,VenkatDatta/libvirt,kantai/libvirt-vfork,fabianfreyer/libvirt,novel/fbsd-libvirt,leilihh/libvirt,novel/fbsd-libvirt,nertpinx/libvirt,trainstack/libvirt,datto/libvirt,emaste/libvirt,andreabolognani/libvirt,bjzhang/libvirt,emaste/libvirt,cbosdo/libvirt,olafhering/libvirt,crobinso/libvirt,rbu/libvirt,datto/libvirt,usc-isi/libvirt,elmarco/libvirt,rlaager/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,novel/fbsd-libvirt,rmarwaha/libvirt1,shugaoye/libvirt,taget/libvirt,andreabolognani/libvirt,siboulet/libvirt-openvz,trainstack/libvirt,trainstack/libvirt,jeckersb/libvirt,trainstack/libvirt,warewolf/libvirt,crobinso/libvirt,bjzhang/libvirt,iam-TJ/libvirt,fabianfreyer/libvirt,jeckersb/libvirt,taget/libvirt,jeckersb/libvirt,jfehlig/libvirt,nertpinx/libvirt,bjzhang/libvirt,rmarwaha/libvirt,dumbbell/libvirt,novel/fbsd-libvirt,bjzhang/libvirt,libvirt/libvirt,dumbbell/libvirt,kantai/libvirt-vfork,rmarwaha/libvirt1,foomango/libvirt,soulxu/libvirt-xuhj,bjzhang/libvirt,andreabolognani/libvirt,jardasgit/libvirt,taget/libvirt,soulxu/libvirt-xuhj,usc-isi/libvirt,datto/libvirt,elmarco/libvirt,wiedi/libvirt,wiedi/libvirt,novel/fbsd-libvirt,leilihh/libvirt,leilihh/libvirt,crobinso/libvirt,cbosdo/libvirt,olafhering/libvirt,rmarwaha/libvirt,dumbbell/libvirt,amery/libvirt-vserver,warewolf/libvirt,foomango/libvirt,rlaager/libvirt,iam-TJ/libvirt,rmarwaha/libvirt1,leilihh/libvirt,nertpinx/libvirt,libvirt/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,rmarwaha/libvirt,usc-isi/libvirt,jeckersb/libvirt,VenkatDatta/libvirt,jeckersb/libvirt,leilihh/libvirt,rmarwaha/libvirt1,iam-TJ/libvirt,wiedi/libvirt,datto/libvirt,jardasgit/libvirt,danwent/libvirt-ovs,kantai/libvirt-vfork,emaste/libvirt,dumbbell/libvirt,agx/libvirt,zippy2/libvirt,zhlcindy/libvirt-1.1.4-maintain,iam-TJ/libvirt,warewolf/libvirt,siboulet/libvirt-openvz,jardasgit/libvirt,siboulet/libvirt-openvz,jeckersb/libvirt,iam-TJ/libvirt,emaste/libvirt,trainstack/libvirt,warewolf/libvirt,cbosdo/libvirt,trainstack/libvirt,wiedi/libvirt,rbu/libvirt,elmarco/libvirt,eskultety/libvirt,rlaager/libvirt,rmarwaha/libvirt,jfehlig/libvirt,iam-TJ/libvirt,jeckersb/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,zhlcindy/libvirt-1.1.4-maintain,amery/libvirt-vserver,amery/libvirt-vserver,shugaoye/libvirt,zippy2/libvirt,soulxu/libvirt-xuhj,jfehlig/libvirt,rbu/libvirt,rbu/libvirt,nertpinx/libvirt,shugaoye/libvirt,agx/libvirt,cbosdo/libvirt,rlaager/libvirt,VenkatDatta/libvirt,elmarco/libvirt,olafhering/libvirt,rlaager/libvirt