Refactor part 1

{{url}}/api/v1/courses/getCourses =>  {{url}}/api/v1/courses/all
{{url}}/api/v1/groups/getCourseGroups?id=13 => {{url}}/api/v1/groups/course/13
{{url}}/api/v1/courses/getCoursesWithGroups => {{url}}/api/v1/courses/all?groups=true
{{url}}/api/v1/commisions/add => {{url}}/api/v1/commisions/user
{{url}}/api/v1/commisions/getAllCommisions => {{url}}/api/v1/commisions/user
{{url}}/api/v1/assignments/getCurrentAssignments =>{{url}}/api/v1/assignments/user
{{url}}/api/v1/users/searchForStudents => {{url}}/api/v1/users/search

Signed-off-by: Marcin Woźniak <y0rune@aol.com>

restservice/src/main/java/com/plannaplan/controllers/GroupController.java

@@ -14,19 +14,22 @@ import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.CrossOrigin;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
 @CrossOrigin
+
 @RequestMapping("/api/" + App.API_VERSION + "/groups")
 public class GroupController {
     @Autowired
     private GroupService groupService;
 
-    @GetMapping("/getCourseGroups")
-    public ResponseEntity<GetCourseGroupsResponse<? extends DefaultGroupResponse>> getCourses(@RequestParam("id") Long id,
+    @GetMapping("/course/{id}")
+    
+    public ResponseEntity<GetCourseGroupsResponse<? extends DefaultGroupResponse>> getCourses(@PathVariable(name = "id") Long id,
             @RequestParam(name = "capacity", defaultValue = "true") Boolean capacity) {
         List<Groups> groups = this.groupService.getGroupsByCourse(id);
         if (capacity) {