Input commodity (per technology) consumption, investment cost, fixed opex and variable opex need to be a default outputs

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Sector results include capacity and "supply" from each technology in each sector. But there are a number of really important outputs that are missing.

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These need to be included in the results by default.

1) The commodities input to each technology for each time slice.
2) The investment cost by technology for each milestone year.
3) The fixed operating cost by technology for each milestone year.
4) The variable operating cost (i.e. not input fuel cost - but other variable operating costs) for each technology for each time slice.

They should each appear is separate files within the sector folder in the results.

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Everyone has to try to use decorators to extract these values - bad idea!

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