- Added implementation for Enum and Map

- Moving the CustomClass to data folder.
- Removing JSONBuilder.java
- Moving the implementation of JSONBuilder to JSONObject.

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

@@ -0,0 +1,18 @@
+package org.json.junit.data;
+
+import java.util.Map;
+
+public class CustomClassG {
+  public Map<String, String> dataList;
+
+  public CustomClassG () {}
+  public CustomClassG (Map<String, String> dataList) {
+    this.dataList = dataList;
+  }
+
+  @Override
+  public boolean equals(Object object) {
+    CustomClassG classG = (CustomClassG) object;
+    return this.dataList.equals(classG.dataList);
+  }
+}