chore: fixed package and directory to lowercase

Author: htanweer244

lesson_16/objects/objects_app/src/main/java/com/codedifferently/lesson16/HummadTanweer/Person.java

@@ -1,4 +1,4 @@
-package com.codedifferently.lesson16.HummadTanweer;
+package com.codedifferently.lesson16.hummadtanweer;
 
 import java.util.ArrayList;
 

lesson_16/objects/objects_app/src/test/java/com/codedifferently/lesson16/HummadTanweer/PersonTest.java

@@ -1,4 +1,4 @@
-package com.codedifferently.lesson16.HummadTanweer;
+package com.codedifferently.lesson16.hummadtanweer;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;