Tests: TestModel - Add emum KeyType

test/java/foundation/pEp/jniadapter/test/utils/model/KeyType.java

@@ -0,0 +1,14 @@
+package foundation.pEp.jniadapter.test.utils.model;
+
+public enum KeyType {
+    NORMAL() {
+        public String toString() {
+            return "normal";
+        }
+    },
+    PASSPHRASE() {
+        public String toString() {
+            return "passphrase";
+        }
+    }
+}