Add multi-period parameters to deserialization

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In the multi-period approach, it should be possible to pass period-specific parameters. It's possible to just pass a sequence, but to reduce data we would like to solve this internally.

How this is done depends on the feedback on oemof.solph Issue#959 and first draft is done in PR#960

• refactor deserialization

• read period info first

• read lists and compare to number of periods/length

• convert to full list or plumbing

• catch non-periodic parameters

• This does not work for all parameters, especially the ones which go into a flow, e.g. capacity/nominal_value

• This does also not work for capacity_costs/ep_costs as passed lists are iterated over per period here