jsOnly option for Tooltip.js

Fixes #15359 
When using Tooltip.js it adds `data-original-title` and `title` to the DOM if they does not exist.

Calling 
````js
$(this).tooltip({ 'placement': 'bottom', 'title': 'Tooltip text'})
````
Gets a code like this
````html
<span data-original-title="" title="">John</span>
```

After this PR you can call tooltip with an optional attribute for java script only solutions (not using data html attributes).
Calling
````
$(this).tooltip({ 'placement': 'bottom', 'title': 'Tooltip text', jsOnly : true });
```` 
Now does not change the DOM
````html
<span data-original-title="" title="">John</span>
````