reorganize classes so test data is separate from test cases

src/test/java/org/json/junit/data/MyEnumClass.java

@@ -0,0 +1,22 @@
+package org.json.junit.data;
+
+/**
+ * this is simply a class that contains some enum instances
+ */
+public class MyEnumClass {
+    private MyEnum myEnum;
+    private MyEnumField myEnumField;
+
+    public MyEnum getMyEnum() {
+        return myEnum;
+    }
+    public void setMyEnum(MyEnum myEnum) {
+        this.myEnum = myEnum;
+    }
+    public MyEnumField getMyEnumField() {
+        return myEnumField;
+    }
+    public void setMyEnumField(MyEnumField myEnumField) {
+        this.myEnumField = myEnumField;
+    }
+}