Change license from NIBIO -> GNU Affero

LICENSE.txt

...forsk/vips/model/roughagenutritionmodel/AIDataMatrix.java

...orsk/vips/model/roughagenutritionmodel/FEmDataMatrix.java

...rsk/vips/model/roughagenutritionmodel/INDFDataMatrix.java

...orsk/vips/model/roughagenutritionmodel/NDFDataMatrix.java

...model/roughagenutritionmodel/OptimizationObservation.java

...forsk/vips/model/roughagenutritionmodel/ResultMatrix.java

.../model/roughagenutritionmodel/RoughageNutritionModel.java

...el/roughagenutritionmodel/RoughageNutritionModelImpl.java

...forsk/vips/model/roughagenutritionmodel/VIDataMatrix.java

...sk/vips/model/roughagenutritionmodel/YieldDataMatrix.java

...el/roughagenutritionmodel/RoughageNutritionModelTest.java