更新实体类模板，将 serialVersionUID 所在行的代码换行，使代码更加美观

Author: gaohanghang

generator-web/src/main/resources/templates/code-generator/beetlsql/beetlentity.ftl

@@ -9,6 +9,7 @@ import java.util.List;
 */
 @Data
 public class ${classInfo.className} implements Serializable {
+
     private static final long serialVersionUID = 1L;
 
 <#if classInfo.fieldList?exists && classInfo.fieldList?size gt 0>
@@ -23,4 +24,4 @@ public class ${classInfo.className} implements Serializable {
     }
 </#if>
 
-}
+}

generator-web/src/main/resources/templates/code-generator/jpa/entity.ftl

@@ -12,7 +12,9 @@ import java.util.List;
 @Data
 @Table(name="${classInfo.tableName}")
 public class ${classInfo.className} implements Serializable {
+
     private static final long serialVersionUID = 1L;
+
     @Id
     @GeneratedValue
 <#if classInfo.fieldList?exists && classInfo.fieldList?size gt 0>
@@ -27,4 +29,4 @@ public class ${classInfo.className} implements Serializable {
     }
 </#if>
 
-}
+}

generator-web/src/main/resources/templates/code-generator/mybatis/model.ftl

@@ -7,6 +7,7 @@ import java.util.List;
 * @author ${authorName} ${.now?string('yyyy-MM-dd')}
 */
 public class ${classInfo.className} implements Serializable {
+
     private static final long serialVersionUID = 1L;
 
 <#if classInfo.fieldList?exists && classInfo.fieldList?size gt 0>
@@ -34,4 +35,4 @@ public class ${classInfo.className} implements Serializable {
 
 </#list>
 </#if>
-}
+}