[ADD] ToModel Difficulte

android/app/src/main/java/fr/iut/sciencequest/model/dto/extensions/DifficulteExtension.kt

@@ -0,0 +1,12 @@
+package fr.iut.sciencequest.model.dto.extensions
+
+import fr.iut.sciencequest.model.dto.DifficulteDTO
+import fr.iut.sciencequest.model.metier.Difficulte
+
+fun DifficulteDTO.ToModel(): Difficulte {
+    val model = Difficulte(
+        id = this.id,
+        libelle = this.libelle
+    )
+    return model
+}