replaced deprecated ${groupId} and ${version}

Ces variables Maven sont deprecated et doivent être remplacées respectivement par ${project.groupId} et ${project.version}
fixed test coverage for DAInterfacePredicatesTest
enforces DAType.simpleName is non nullable
added @Nonnull on MapperAnnotationProcessor methods
added @Nonnull on FileGeneratorContext methods
added @Nonnull on method of ImportListBuilder
moved logic methods out of DAMethod

also added best test coverage on DAMethodPredicates
extended coverage of DATypeFactory
added coverage on DANameFactory