Prefire basic implementation (#1743)

* prefire basic implementation

force the unit tests to run on iPhone 14

skipping plugin validation

archive artifacts

better workflow

removed the OS restriction

lfs

custom stencil

new test file

deleting

* git lfs

* lfs

* test

* customised the stencil to support our internal protocol

* for now we can remove the OS check from the stencil

* added a delay

* tests have been moved

* improvement

* recommit

* perceptual precision lowered

* updated snapshot testing and selected also iOS version

* added ios version control

ElementX/Sources/Other/TestablePreview.swift

@@ -0,0 +1,21 @@
+//
+// Copyright 2023 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import SwiftUI
+
+import Prefire
+
+protocol TestablePreviewProvider: PreviewProvider, PrefireProvider { }