Apache Velocity language for PMD

I added Apache Velocity language to PMD along with some rules. This is a front-end templating language (you would use it instead of jsp for example). The actual parser and the AST classes came from the velocity project itself, with minor tweaks to make it work with PMD. Most of the rules were inspired by Java and JSP rules, but I'm planning to add more in the future.

Can this be added to the main PMD project?