Create DataLoader.java

Added a Dataloader class to skip post construct behavior in test case. This empty class takes precedence over the application class of the same class name.

src/test/java/sg/com/smartinventory/utility/DataLoader.java

@@ -0,0 +1,8 @@
+package sg.com.smartinventory.utility;
+
+import org.springframework.context.annotation.Primary;
+
+@Primary
+public class DataLoader {
+
+}