📍Use lombok, reformat, and optimize the code (#1560)

* Use lombok, reformat, and optimize the code

* Fix merge conflicts and some sonar issues

Co-authored-by: va1m <va1m@email.com>

double-buffer/src/main/java/com/iluwatar/doublebuffer/Pixel.java

@@ -28,12 +28,6 @@ package com.iluwatar.doublebuffer;
  */
 public enum Pixel {
 
-  WHITE(0),
-  BLACK(1);
-
-  private final int color;
-
-  Pixel(int color) {
-    this.color = color;
-  }
+  WHITE,
+  BLACK;
 }