Added a < b comparison at the beginning as well

Author: KAbhiram

src/main/java/main/java/videos/GCD.java

@@ -28,6 +28,12 @@ private static int iterativeGcd(int a, int b) {
  }
 
  private static int binaryGcd(int a, int b) {
+if (a < b) {
+int tempSwap = a;
+a = b;
+b = tempSwap;
+}
+
  if (b == 0) {
  return a;
  }