prepaired Tests for new Methods in JsonTaskDatabase

src/test/java/ch/zhaw/gartenverwaltung/io/JsonTaskDatabaseTest.java

@@ -34,4 +34,14 @@ public class JsonTaskDatabaseTest {
         Assertions.assertTrue(taskList.size()>0);
         */
     }
+
+    @Test
+    void getTaskForCrop() {
+        // TODO implement Test
+    }
+
+    @Test
+    void removeTasksForCrop() {
+        // TODO implement Test
+    }
 }