implement adaptable dependency via inheritance

tools.descartes.dni.adaptation/model/DNIMM3AP.xcore

tools.descartes.dni.adaptation/plugin.properties

...scartes/dni/dnimm3ap/AdaptableConstantDoubleVariable.java

...descartes/dni/dnimm3ap/AdaptableConstantLongVariable.java

...src/tools/descartes/dni/dnimm3ap/AdaptableDependency.java

...n/src/tools/descartes/dni/dnimm3ap/AdaptableVariable.java

...tation/src/tools/descartes/dni/dnimm3ap/DNIAPFactory.java

...tation/src/tools/descartes/dni/dnimm3ap/DNIAPPackage.java

...ni/dnimm3ap/impl/AdaptableConstantDoubleVariableImpl.java

.../dni/dnimm3ap/impl/AdaptableConstantLongVariableImpl.java

...c/tools/descartes/dni/dnimm3ap/impl/DNIAPFactoryImpl.java

...c/tools/descartes/dni/dnimm3ap/impl/DNIAPPackageImpl.java

...provider/AdaptableConstantDoubleVariableItemProvider.java

...p/provider/AdaptableConstantLongVariableItemProvider.java

...imm3ap/provider/AlternativeDependencySetItemProvider.java

...dnimm3ap/provider/AlternativeVariableSetItemProvider.java

...ni/dnimm3ap/provider/DNIAPItemProviderAdapterFactory.java

...ools/descartes/dni/dnimm3ap/util/DNIAPAdapterFactory.java

...on/src/tools/descartes/dni/dnimm3ap/util/DNIAPSwitch.java

tools.descartes.dni.core/META-INF/MANIFEST.MF