manager: datamodel: missing configuration

• PROXYv2

  network:
    proxy-v2:
      allow: ["172.22.0.1", "172.18.1.0/24"]
    # by default it is turned off; 'net.proxy_allowed({})' is used in Lua configuration
    proxy-v2: false

• debugging options were added some time ago.

Are there any other changes that I missed? Feel free to suggest any changes in configuration schema. @ostava @vcunat

related to #715 (closed)