Refactor application structure and add unit tests

Added:
- New `ProgressService` class for managing progress indicators.
- New `AssetDatabase`, `AssetOpenHandlerAttribute`, and `AsyncAssetOpenHandlerAttribute` classes for asset handling.
- `Ghost.UnitTest` project for unit testing with associated files and configurations.

Changed:
- `ActivationHandler` class to ensure correct handling of `LaunchActivatedEventArgs`.
- `App.xaml.cs` to register `INotificationService` and `IProgressService`, replacing `StackedNotificationService`.
- `OnLaunched` method in `App.xaml.cs` to correctly call `ActivationHandler.Handle(args)` and start the host.
- `INavigationAware` interface from internal to public for broader access.
- `EditorState.cs` to activate `EditorApplication` with the current service provider.
- Property names in `AssetItem` and `ExplorerItem` structs to `Name` and `FullName`.
- `NotificationService` class to implement `INotificationService` and refactor notification handling.
- `AssetPathToGlyphConverter` to handle file extensions consistently.
- Bindings in `ProjectPage.xaml` and `ProjectPage.xaml.cs` to use `FullName` instead of `Path`.
- `EngineEditorWindow` and `LandingWindow` classes to utilize new notification and progress services.
- `Logger` class to include a new method for logging errors with exceptions.

Updated:
- Manifest files and project files to reflect new structure and dependencies.
- Solution file `GhostEngine.sln` to include the new unit test project.
- Added several new test classes and methods in `UnitTests.cs`.

Ghost.App/View/Pages/EngineEditor/ConsolePage.xaml

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<Page
+    x:Class="Ghost.App.View.Pages.EngineEditor.ConsolePage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:local="using:Ghost.App.View.Pages.EngineEditor"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    mc:Ignorable="d">
+
+    <Grid Background="{ThemeResource LayerFillColorDefaultBrush}">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+        </Grid.RowDefinitions>
+
+        <!--  Toolbar  -->
+        <Grid
+            Grid.Row="0"
+            BorderBrush="{ThemeResource CardStrokeColorDefaultSolid}"
+            BorderThickness="0,0,0,1">
+            <CommandBar Background="{ThemeResource CardBackgroundFillColorSecondaryBrush}" DefaultLabelPosition="Collapsed">
+                <CommandBar.PrimaryCommands>
+                    <AppBarButton Command="{x:Bind ViewModel.ClearLogsCommand}" Content="Clear" />
+                    <AppBarSeparator />
+                    <AppBarToggleButton Width="45" IsChecked="{x:Bind ViewModel.ShowInfo, Mode=TwoWay}">
+                        <AppBarToggleButton.Icon>
+                            <FontIcon Glyph="&#xF167;" />
+                        </AppBarToggleButton.Icon>
+                    </AppBarToggleButton>
+                    <AppBarToggleButton Width="45" IsChecked="{x:Bind ViewModel.ShowWarning, Mode=TwoWay}">
+                        <AppBarToggleButton.Icon>
+                            <FontIcon Glyph="&#xE814;" />
+                        </AppBarToggleButton.Icon>
+                    </AppBarToggleButton>
+                    <AppBarToggleButton Width="45" IsChecked="{x:Bind ViewModel.ShowError, Mode=TwoWay}">
+                        <AppBarToggleButton.Icon>
+                            <FontIcon Glyph="&#xEB90;" />
+                        </AppBarToggleButton.Icon>
+                    </AppBarToggleButton>
+                </CommandBar.PrimaryCommands>
+
+                <CommandBar.SecondaryCommands>
+                    <AppBarToggleButton BorderThickness="0" Label="Clear On Play" />
+                    <AppBarToggleButton
+                        BorderThickness="0"
+                        IsChecked="{x:Bind ViewModel.ShowStackTrace, Mode=TwoWay}"
+                        Label="Show Stack Trace" />
+                </CommandBar.SecondaryCommands>
+            </CommandBar>
+        </Grid>
+
+        <!--  Log Content  -->
+        <Grid Grid.Row="1">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="*" />
+                <RowDefinition Height="100" />
+            </Grid.RowDefinitions>
+
+            <ListView
+                x:Name="LogListView"
+                Grid.Row="0"
+                ItemsSource="{x:Bind ViewModel.Logs, Mode=OneWay}"
+                SelectedItem="{x:Bind ViewModel.SelectedLog, Mode=TwoWay}" />
+            <Grid
+                Grid.Row="1"
+                Padding="4"
+                BorderBrush="{ThemeResource CardStrokeColorDefaultSolid}"
+                BorderThickness="0,1,0,0">
+                <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
+                    <TextBlock
+                        IsTextSelectionEnabled="True"
+                        Style="{StaticResource CaptionTextBlockStyle}"
+                        Text="{x:Bind ViewModel.SelectedLog.ToStringWithStackTrace(), Mode=OneWay}"
+                        TextWrapping="Wrap" />
+                </ScrollViewer>
+            </Grid>
+        </Grid>
+    </Grid>
+</Page>