[Nut-upsdev] libnutconf: (De)serialisation methods added

[VaclavKrpec at Eaton.com]

Hello everybody,

(de)serialisation methods of all the currently existing config. classes
were pushed to balooloo/nut, libconf branch:

https://github.com/balooloo/nut/commit/df8b584c7fef71741b33bff11a482a103360250e

Please note that the deserialisation methods should work, however
they are quite inefficient since they simply read the whole stream to memory
and then call parseFromString.  I guess it's enough for now, but in the future,
the parser should be modified to use NutStream, directly.

Nevertheless, this means that the code responsible for reading/writing
nut.conf, upsmon.conf, upsd.conf, ups.conf and upsd.users and assembly
of the associated configuration objects is there.
Note however, that most of the code wasn't U-tested, yet.  I wanted to write
UTs, today, but I'm feeling a bit sick, I've a headache and I guess I'll have to
leave that for the next week.

As usual, reviews, comments, suggestions etc welcome.

Kind regards,

vasek

--
Václav Krpec
Network UPS Tools project
Eaton Opensource Team



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