⭐ IN THE GIVEN PROBLEM, WE NEED TO ROTATE THE 2D MATRIX IMAGE BY 90 DEGREE, AND RETURN THE MATRIX AGAIN.
⭐ IF WE NEED TO CONVERT 2D MATRIX, BY 90 DEGREE, WE CAN FOLLOW THE APPROACH LIKE: FIRST PERFORM TRANSPOSE, TO CONVERT THE GIVEN ROWS TO COLUMNS, AND THEN REVERSE EACH ROWS OF MATRIX , BY THIS APPROACH WE CAN GET OUR REQUIRED OUTPUT.
⭐ TIME COMPLEXITY: O(n2)
⭐ SPACE COMPLEXITY : O(1), //NO EXTRA SPACE ARE USED.
