WIP: software/kvm: reorganize default/cluster/resilient input schema json

• Adjust the position of parameters: place the more commonly used parameters on top; delete useless parameters
• Create frontend & 1-machine schema to reuse:
  • default: 1-machine + frontend
  • resilient: default(1-machine+frontend) + resilient
  • cluster: N* 1-machine + frontend
• remove relative parameters in buildout:
  • default:
    • external-disk-format
    • external-disk-number
    • external-disk-size
    • monitor-cors-domains
    • monitor-interface-url
  • resilient:
    • Since resilient uses schema of default, the items removed are the same as the default.
  • cluster:
    • external-disk-format
    • external-disk-number
    • external-disk-size
    • monitor-cors-domains
    • monitor-interface-url
    • slave-frontend
• Test result
• You can preview at my instance: lu.test.test/Thisismypassw0rd. (with the dot)