Support of configuration-groups in Juniper

[jean1]

The following configuration should be analysed by the junos parser:

groups {
mysubgroup {
...
}
mygroup {
interfaces {
<ge-*> {
apply-group mysubgroup;
unit 0 {
family ethernet-switching {
vlan {
members [ 2 ];
}
}
}
}
}
}
}

interface {
ge-1/1/0 {
apply-group mygroup;
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan {
members [ 3 ];
}
}
}
}

This could be done by a pre-processor which replaces groups at the correct depth.