* Add device tracker to subaru integration * Fix timestamp in device tracker * Add test for device tracker * Incorporate PR review comments * Apply suggestions from code review Co-authored-by: G Johansson <goran.johansson@shiftit.se> * Incorporate code review comments * Add tests for bad device tracker data * Check device tracker data is available in entity --------- Co-authored-by: G Johansson <goran.johansson@shiftit.se>