Generalize compute with IfrsVariable applicability

[dcolleoni]

This is to :

1. facilitate applicability for new input sources (PV)
2. allow computation of all scopes at every import => required for Actual projections to work.

Storage.EstimateTypesByImportFormat holds which EstimateTypes are computed for each ImportFormat.

ComputeWithIfrsVariable could be triggered when

GetStorage().ShouldComputeWithIfrsVariable(x.EstimateType) is true

public bool ShouldComputeWithIfrsVariable(string estimateType){
return !EstimateTypesByImportFormat[ImportFormat].Contains(estimateType);
}

note that DA EstimateType should be split in 2 EstimateTypes D with InputSource 7 and DN(deferralNominal) with InputSource 5(CF,OP)