Test suite for Touch Events v1

Follow up after closing #794.

This is the test suite for the Touch Events spec <http://www.w3.org/TR/touch-events>.

This suite was created by the Web Events Working Group using the following HG repo:

https://dvcs.w3.org/hg/webevents/raw-file/default/tests/touch-events-v1/approved

The Web Events WG closed after Touch Events spec was published as a Recommendation.

Contributors to this test suite include: Olli Pettay, Matt Brubeck, Cathy Chan,
Rick Byers and Art Barstow.