Add Kdoc to the image utility

kotlin/services/bedrock-runtime/src/main/kotlin/com/example/bedrockruntime/libs/ImageTools.kt

@@ -10,7 +10,19 @@ import javax.swing.ImageIcon
 import javax.swing.JFrame
 import javax.swing.JLabel
 
+/**
+ * Utility object for handling image-related operations.
+ */
 object ImageTools {
+    /**
+     * Displays a byte array as an image in a new window.
+     *
+     * Creates a new JFrame window that displays the image represented by the provided byte array.
+     * The window will close the application when closed (EXIT_ON_CLOSE).
+     *
+     * @param imageData The image data as a byte array
+     * @throws RuntimeException if there is an error reading the image data
+     */
     fun displayImage(imageData: ByteArray) {
         try {
             val image = ImageIO.read(ByteArrayInputStream(imageData))
@@ -24,4 +36,4 @@ object ImageTools {
             throw RuntimeException(e)
         }
     }
-}
+}