chore: rename application main classes to Dc3-prefixed convention

dc3-webapp/src/main/java/com/pnoker/Dc3WebappApplication.java

@@ -0,0 +1,28 @@
+package com.pnoker;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+import org.springframework.cloud.client.loadbalancer.LoadBalanced;
+import org.springframework.context.annotation.Bean;
+import org.springframework.scheduling.annotation.EnableAsync;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * @author: Pnoker
+ * @email : pnokers@gmail.com
+ */
+@EnableAsync
+@EnableDiscoveryClient
+@SpringBootApplication
+public class Dc3WebappApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(Dc3WebappApplication.class, args);
+    }
+
+    @Bean
+    @LoadBalanced
+    RestTemplate restTemplate() {
+        return new RestTemplate();
+    }
+}