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>

ElementX/Sources/Other/AccessibilityIdentifiers.swift

@@ -33,7 +33,9 @@ struct A11yIdentifiers {
     static let roomMemberDetailsScreen = RoomMemberDetailsScreen()
     static let createRoomScreen = CreateRoomScreen()
     static let invitesScreen = InvitesScreen()
-    
+    static let welcomeScreen = WelcomeScreen()
+    static let migrationScreen = MigrationScreen()
+
     struct AnalyticsPromptScreen {
         let title = "analytics_prompt-title"
         let enable = "analytics_prompt-enable"
@@ -59,8 +61,10 @@ struct A11yIdentifiers {
         let settings = "home_screen-settings"
         let signOut = "home_screen-sign_out"
         let verificationBannerContinue = "home_screen-verification_continue"
+        
+        let roomNamePrefix = "home_screen-room_name"
         func roomName(_ name: String) -> String {
-            "home_screen-room_name:\(name)"
+            "\(roomNamePrefix):\(name)"
         }
     }
     
@@ -142,4 +146,12 @@ struct A11yIdentifiers {
         let roomName = "create_room-room_name"
         let roomTopic = "create_room-room_topic"
     }
+
+    struct WelcomeScreen {
+        let letsGo = "welcome_screen-lets_go"
+    }
+
+    struct MigrationScreen {
+        let message = "migration_screen-message"
+    }
 }