Add MappingType in OutputStream annotation/description
Add OutputUserSelectionFeaturesMapper, rename OutputFeaturesMapper -> OutputFixedfFeaturesMapper, supports output user selection during compnent creation
Add instance methods to use OutputUserSelectionFeatureMapper
Rename OutputFeaturesMapperTestBuilder -> OutputFixedFeaturesMapperTestBuilder
Fix generics typing
Add CsvSteamSource to test OutputUserSelectionFeatureMapper
Merge pull request #19 from pmerienne/feature/allow_user_selection_output_mappings

Feature/allow user selection output mappings