add new common module

common/src/main/java/io/wdd/common/CommonApplication.java

@@ -0,0 +1,13 @@
+package io.wdd.common;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class CommonApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(CommonApplication.class, args);
+    }
+
+}

common/src/main/resources/application.properties

@@ -0,0 +1 @@
+