feat: AbstractService 추가

-> EgovAbstractServiceImpl extends
      Service class AbstractService extends로 변경
      Exception 클래스 패키지 이동
      EgovMessageSource class 삭제
      MessageUtil 추가

mens-core/src/main/java/kr/xit/core/spring/config/WebMvcConfig.java

@@ -78,10 +78,6 @@ public class WebMvcConfig implements WebMvcConfigurer {
      */
     @Value("${app.log.request.exclude-patterns}")
     private List<String> EXCLUDE_URL_REGEXS;
-    @Value("${spring.messages.basename}")
-    private String[] basenames;
-    @Value("${spring.messages.encoding}")
-    private String encoding;
 
     private final CorsProperties corsProperties;
 
@@ -175,29 +171,6 @@ public class WebMvcConfig implements WebMvcConfigurer {
     }
     // -------------------------------------------------------------
 
-
-    /**
-     * <pre>
-     * Reloadable 메세지 설정
-     * - load할 메세지 : properties[spring.memssages.basename]에 정의
-     *
-     * @return ReloadableResourceBundleMessageSource
-     * </pre>
-     * @see EgovMessageSource
-     */
-//    @Bean
-//    public MessageSource messageSource() {
-//        ReloadableResourceBundleMessageSource rrbms = new ReloadableResourceBundleMessageSource();
-//        rrbms.setBasenames(basenames);
-//        rrbms.getBasenameSet().forEach(s -> log.info("messageSource getBasename = {}", s));
-//
-//        rrbms.setCacheSeconds(60);
-//        // 메세지가 없으면 코드 메세지 load
-//        rrbms.setUseCodeAsDefaultMessage(true);
-//        rrbms.setDefaultEncoding(StandardCharsets.UTF_8.name());
-//        return rrbms;
-//    }
-
     // -------------------------------------------------------------
     // Log
     // -------------------------------------------------------------