Checkpoints: Part 1 of Added docs

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

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

@@ -47,6 +47,14 @@ public class Assignment {
         return this.group.getRegisteredStudents().contains(this.commision.getCommisionOwner());
     }
 
+    /** 
+     * Getter of commision
+     * @return Commision Commision of given assignments
+     */
+    public Commision getCommision(){
+        return this.commision;
+    }
+
     /**
      * Assignment
      *