tests: add a basic ivi-shell test

This simply tests that Weston starts with ivi-shell, and ivi_application
is present.

Changes in v3:
- Rebased to upstream weston-tests-env changes.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com> (v2)
3 files changed