feat: change up organisation

labs/cs2030s/MockPE2/Utilities.java

@@ -0,0 +1,13 @@
+import java.util.stream.Stream;
+import java.util.List;
+import java.util.ArrayList;
+
+class Utilities {
+  public static Stream<Character> split(String s) {
+    List<Character> chars = new ArrayList<>();
+    for (int i=0; i<s.length(); i++) {
+      chars.add(s.charAt(i));
+    }
+    return chars.stream();
+  }
+}