Added new columns into a FileMigrator and etc

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

buisnesslogic/src/main/java/com/plannaplan/services/GroupService.java

@@ -30,6 +30,10 @@ public class GroupService {
         return this.repo.find(time, room, capacity);
     }
 
+    public Optional<Groups> find(Integer zajCykId, Integer nrGr ) {
+        return this.repo.find(zajCykId, nrGr);
+    }
+
     public List<Groups> getGroupsByCourse(Long id) {
         return this.repo.getByCourse(id);
     }