Create Wrapper for instances / revise MockUtils

- Add test resources folder
- Create basic test for Messages (todo: add concrete tests)
- Create WrapperMock
- Change UtilsTest (todo: make it work)

src/test/java/fr/xephi/authme/settings/MessagesTest.java

@@ -0,0 +1,28 @@
+package fr.xephi.authme.settings;
+
+import fr.xephi.authme.AuthMe;
+import fr.xephi.authme.AuthMeMockUtil;
+import fr.xephi.authme.ConsoleLogger;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.File;
+
+/**
+ * Test for {@link Messages}.
+ */
+public class MessagesTest {
+
+    @Before
+    public void setUpMessages() {
+        AuthMe authMe = AuthMeMockUtil.mockAuthMeInstance();
+        AuthMeMockUtil.insertMockWrapperInstance(ConsoleLogger.class, "wrapper", authMe);
+        File file = new File("messages_test.yml");
+        Messages messages = new Messages(file, "en");
+    }
+
+    @Test
+    public void shouldLoadMessages() {
+
+    }
+}