Performance tests (#1301)

* Add signposts to performance tests.

- Update flow to include support for the migration screen.

* If the welcome screen shows, click on the button.

* Ensure a clean simulator each run.

* Add accessibility identifier for migration screen if required.

* Handle walking into the room and back out again.

* use iphone 14 pro to match what's used in xcode.

* Remove ApplicationTests as duplicated in LoginTests.

We measure app startup time in LoginTests as part of the flow - we may as well avoid spending 60s doing only that measurement in ApplicationTests

* Sleep 10s, the ui is otherwise showing up in random order.

* Revert "Remove ApplicationTests as duplicated in LoginTests."

This reverts commit 8670710315bcd0d6c3c3046f534b32b4c728b837.

* Update script to parse out correct values from results file.

* Allow cancellation of password prompt in any order.

* Remove test timeout, performance tests will always take a while.

* Adjust parsing further

* Remove ApplicationTests.

* Move to a more elegant way to wait for something to disappear.

* Linting.

* Fix unit tests.

---------

Co-authored-by: Doug <douglase@element.io>
Co-authored-by: Doug <6060466+pixlwave@users.noreply.github.com>

IntegrationTests/SupportingFiles/IntegrationTests.xctestplan

@@ -27,8 +27,7 @@
       "containerPath" : "container:ElementX.xcodeproj",
       "identifier" : "D3DB351B7FBE0F49649171FC",
       "name" : "IntegrationTests"
-    },
-    "testTimeoutsEnabled" : true
+    }
   },
   "testTargets" : [
     {