[do not merge] Tizen instructions for "--run-as-service"

Pull request made for review.

The main change is to switch from using the Tizen SDK to using VMware player; this enables us to give instructions for very recent Tizen IVI versions, where Crosswalk works correctly.

I will merge this once I've updated the Tizen IVI instructions to use gbs, as the current instructions still reference the old method of installing/running an app with extensions (i.e. pointing Crosswalk at the right directly and invoking the main HTML file).

So this fixes https://crosswalk-project.org/jira/browse/XWALK-1359, but should wait for https://crosswalk-project.org/jira/browse/XWALK-1363 before going to the live site.