ReleasePatterns and EconomicBasisDriver

[sbatka]

• add new EstimateType "P" for Patterns to include AmountTypes "CU"

• move CU from EstimateType to AmountType, including the changes to formulae

• add 'EconomicBasisDriver' to SingleDataNodeParameters, making it optional

• add 'ReleasePattern' to SingleDataNodeParameters, making it optional

• with some documentation and validations

- add 'CashFlowPeriodicity' and 'InterpolationMethod' to cashflow input importer:

1. check the presence of 'CashFlowPeriodicity' and 'InterpolationMethod' in the cashflow, if available, it will use it. Note this is defined for combination of 'AmountType', 'EstimateType' in the cashflow set.
2. If any of the 2 parameters is not available, it will check the 'DataNode' level, namely 'SingleDataNodeParameter' and use for all AmountTypes and EstimateTypes in the given DataNode.
3. In case no information or invalid data is provided, the default values will be used: CashFlowPeriodicity = Monthly and InterpolationMethod = NotApplicable.

• add "ContractTerm" to GOC (not connected anywhere for now)
• add basic unit tests for ReleasePattern values

[dcolleoni]

Because of the changes in the datamodel, we need a new version of the Initial migration. @nnikolopoulos can show you how to produce it. Thanks!

[dcolleoni]

Could you add some description in the DataStructure NB for these new properties in the SingleDataNodeParameter?

[sbatka]

I have now added a test on ReleasePattern invalid and Null values.