Added controller for FileUpload, refactor of main package, try to add forum system.

src/main/java/site/easystartup/web/project/dto/UserDto.java

@@ -0,0 +1,23 @@
+package site.easystartup.web.project.dto;
+
+import lombok.Data;
+import site.easystartup.web.domain.Role;
+
+import java.io.Serializable;
+import java.util.Set;
+
+@Data
+public class UserDto implements Serializable {
+    private final long id;
+    private final String username;
+    private final String password;
+    private final boolean active;
+    private final String full_name;
+    private final String status;
+    private final String iconPath;
+    private final String email;
+    private final Set<String> tags;
+    private final Set<String> professions;
+    private final Set<Long> projects;
+    private final Set<Role> roles;
+}