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

src/main/java/site/easystartup/web/project/service/ProjectService.java

@@ -0,0 +1,49 @@
+package site.easystartup.web.project.service;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import site.easystartup.web.project.domain.model.Project;
+import site.easystartup.web.project.repo.ProjectRepo;
+
+import java.security.Principal;
+import java.util.Set;
+
+@Service
+@RequiredArgsConstructor
+public class ProjectService {
+    private final ProjectRepo projectRepo;
+
+
+    public Project createProject(Project project, Principal principal) {
+        return null;
+    }
+
+    public Project updateProject(Project map, Long projectId, Principal principal) {
+    }
+
+    public void deleteProject(Long projectId, Principal principal) {
+    }
+
+    public Project getProjectById(Long projectId) {
+    }
+
+    public Set<Project> getAllProjectsForUser(Long userId) {
+        
+        
+    }
+
+    public Set<Project> getAllProjectsWithTechnology(String technology) {
+    }
+
+    public Set<Project> getAllProjectsForCurrentUser(Principal principal) {
+    }
+
+    public Set<Project> getAllProjectsWithPosition(String nameOfPosition) {
+    }
+
+    public Object applayOnProject(Long projectId, Principal principal) {
+    }
+
+    public Object confirmParticipant(Long projectId, Long participantId, Principal principal) {
+    }
+}