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A parser for BSD style ``ifconfig(8)`` output.
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- https://man.netbsd.org/ifconfig.8
- https://man.openbsd.org/ifconfig.8
All output is considered equally, and then massaged into a singular form:
an ``Ifstate`` object.
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``__hash__()`` of the input (``text``), so it should be fairly quick,
despite our giant inputs.
@param text: The output of ``ifconfig -a``
@returns: A dict of ``Ifstate``s, referenced by ``name`` and ``mac``
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