Lps 49953 Create taglib for Alloy video module

Jira: https://issues.liferay.com/browse/LPS-49953

Quick code to test in any portlet:

```
<aui:video
	id="video-id"
	width="600"
	height="300"
	url="http://videos.liferay.com/webinars/2010-08-11.mp4"
	poster="http://www.randomwebsite.com/images/head.jpg"/>
<%
```