common: refactor common library pt2 (#8588)

- remove common lib
- split settings, remove common-md
- move ipc interop/kb_layout to interop
- rename core -> settings, settings -> old_settings
- os-detect header-only; interop -> PowerToysInterop
- split notifications, move single-use headers where they're used
- winstore lib
- rename com utils
- rename Updating and Telemetry projects
- rename core -> settings-ui and remove examples folder
- rename settings-ui folder + consisent common/version include

src/settings-ui/Microsoft.PowerToys.Settings.UI.UnitTests/Mocks/IIOProviderMocks.cs

@@ -0,0 +1,75 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.IO.Abstractions;
+using System.Linq.Expressions;
+using Microsoft.PowerToys.Settings.UI.Library.Utilities;
+using Moq;
+
+namespace Microsoft.PowerToys.Settings.UI.UnitTests.Mocks
+{
+    internal static class IIOProviderMocks
+    {
+        /// <summary>
+        /// This method mocks an IO provider to validate tests wich required saving to a file, and then reading the contents of that file, or verifying it exists
+        /// </summary>
+        /// <returns>Mocked IO Provider</returns>
+        internal static Mock<IIOProvider> GetMockIOProviderForSaveLoadExists()
+        {
+            string savePath = string.Empty;
+            string saveContent = string.Empty;
+            var mockIOProvider = new Mock<IIOProvider>();
+            mockIOProvider.Setup(x => x.WriteAllText(It.IsAny<string>(), It.IsAny<string>()))
+                          .Callback<string, string>((path, content) =>
+                          {
+                              savePath = path;
+                              saveContent = content;
+                          });
+
+            // Using Ordinal since this is used internally for a path
+            mockIOProvider.Setup(x => x.ReadAllText(It.Is<string>(x => x.Equals(savePath, StringComparison.Ordinal))))
+                          .Returns(() => saveContent);
+
+            // Using Ordinal since this is used internally for a path
+            mockIOProvider.Setup(x => x.FileExists(It.Is<string>(x => x.Equals(savePath, StringComparison.Ordinal))))
+                          .Returns(true);
+
+            // Using Ordinal since this is used internally for a path
+            mockIOProvider.Setup(x => x.FileExists(It.Is<string>(x => !x.Equals(savePath, StringComparison.Ordinal))))
+                          .Returns(false);
+
+            return mockIOProvider;
+        }
+
+        private static readonly IFileSystem FileSystem = new FileSystem();
+        private static readonly IFile File = FileSystem.File;
+
+        /// <summary>
+        /// This method mocks an IO provider so that it will always return data at the savePath location.
+        /// This mock is specific to a given module, and is verifiable that the stub file was read.
+        /// </summary>
+        /// <param name="savePath">The path to the stub settings file</param>
+        /// <param name="filterExpression">The substring in the path that identifies the module eg. Microsoft\\PowerToys\\ColorPicker</param>
+        /// <returns>Mocked IFile</returns>
+        internal static Mock<IFile> GetMockIOReadWithStubFile(string savePath, Expression<Func<string, bool>> filterExpression)
+        {
+            string saveContent = File.ReadAllText(savePath);
+            var fileMock = new Mock<IFile>();
+
+            fileMock.Setup(x => x.ReadAllText(It.Is<string>(filterExpression)))
+                         .Returns(() => saveContent).Verifiable();
+
+            fileMock.Setup(x => x.Exists(It.Is<string>(filterExpression)))
+                          .Returns(true);
+
+            return fileMock;
+        }
+
+        internal static void VerifyIOReadWithStubFile(Mock<IFile> fileMock, Expression<Func<string, bool>> filterExpression, int expectedCallCount)
+        {
+            fileMock.Verify(x => x.ReadAllText(It.Is<string>(filterExpression)), Times.Exactly(expectedCallCount));
+        }
+    }
+}

src/settings-ui/Microsoft.PowerToys.Settings.UI.UnitTests/Mocks/ISettingsUtilsMocks.cs

@@ -0,0 +1,24 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using Microsoft.PowerToys.Settings.UI.Library;
+using Microsoft.PowerToys.Settings.UI.Library.Interfaces;
+using Moq;
+
+namespace Microsoft.PowerToys.Settings.UI.UnitTests.Mocks
+{
+    internal static class ISettingsUtilsMocks
+    {
+        // Stubs out empty values for imageresizersettings and general settings as needed by the imageresizer viewmodel
+        internal static Mock<ISettingsUtils> GetStubSettingsUtils<T>()
+            where T : ISettingsConfig, new()
+        {
+            var settingsUtils = new Mock<ISettingsUtils>();
+            settingsUtils.Setup(x => x.GetSettings<T>(It.IsAny<string>(), It.IsAny<string>()))
+            .Returns(new T());
+
+            return settingsUtils;
+        }
+    }
+}