[WIP] Handle heterogenous periods, dispatch and divide in SimulationBuilder

[Morendil]

TODO:

• Handle tabular set_input with temporal inferences (divide/dispatch by period) directly in SimulationBuilder

Breaking changes

• Moves the logic for "dispatch by period" and "divide by period" from Holders to SimulationBuilder
  • This preserves the current behaviour for all users of the YAML test formats and JSON payloads, you will however be affected if you are relying on this behaviour when calling set_input directly.

Migration guide

• If you are calling set_input directly AND relying on dispatch or divide behaviour, alter your code to obtain the subperiods of periods larger than the definition period of the variable being set. Alternately, you can construct your simulation data with SimulationBuilder.

Fixes #564

This currently breaks the optimization from #827 because dispatch/divide can happen at the individual level and not just array-wise - @fpagnoux I'm not sure the best way to get that back, I'm thinking of performing checks on array equality at finalize time. WDYT ?

[Morendil]

This is turning into a bit of a headache, so I'm temporarily closing it while we address #887.

[guillett]

Many thanks @Morendil for your hard work.

I am currently facing a related issue with the following test failing

- name: "Multiple input formats"
  period: 2015-01
  absolute_error_margin: 0.01
  input:
    persons:
      Alicia:
        salary:
          2015-01: 100
      Bob:
        salary:
          month:2015-01:10: 2000
  output:
    income_tax: [15, 30]