Create CTA "call to action" web component 

HLD: 
Return <a></a> or <button></button> based on href property is passed in the data or not. 
Should be able to render Icon.
Should be able to render outside passed markup through a slot.
Should be able to handle props such as "href, clickHandler, target, Id, rel, aria, class, data, eventAction, eventLabel, eventCategory, assistiveText, host, tracking, IconName, IconText".
