#432 Create custom dependency injector

src/main/java/fr/xephi/authme/initialization/DataFolder.java

@@ -0,0 +1,14 @@
+package fr.xephi.authme.initialization;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Annotation for specifying the plugin's data folder.
+ */
+@Target(ElementType.PARAMETER)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface DataFolder {
+}