Added endpoints

buisnesslogic/src/main/java/com/plannaplan/entities/Course.java

@@ -22,6 +22,10 @@ public class Course {
     public Course() {
     }
 
+    public Long getId() {
+        return this.id;
+    }
+
     public String getName() {
         return name;
     }

buisnesslogic/src/main/java/com/plannaplan/entities/Lecturer.java

@@ -44,4 +44,7 @@ public class Lecturer {
         this.surname = surname;
     }
 
+    public Lecturer() {
+    }
+
 }