Add support for creating initial net config

[mir07]

Hi all,

I think it is not very easy for new users coming to Omnios from various other distros to make the initial network configuration so I have written a small tool in Python to remedy this obstacle. The script is tested and runs on all Omnios as of r151014. I have tested on r151014 and r151022

The script is not ment to be the swiss army knife for configuring networks on Omnios so there is no support for vnic, vlan, and aggregates. It will only support configuring a single nic given the
user the option for dhcp and static setup. The user is also asked whether to configure dns in which case the user is asked for an IP.

Currently it will only handle ethernet but IPoIB is on my todo list. The script can be downloaded here: http://git.datanom.net/netconf.git/