Add new tap method

Author: vs-dev-bg

src/main/java/io/appium/java_client/TouchShortcuts.java

@@ -28,7 +28,14 @@ public interface TouchShortcuts {
  * @param el The element to pinch
  */
  public void zoom(WebElement el);
-
+
+/**
+ * Convenience method for tapping a WebElement on the screen
+ * 
+ * @param element - WebElement to be tapped
+ */
+public void tap(WebElement element);
+
 /**
  * Convenience method for tapping a position on the screen
  *