Yizzho/peek/videos (#25983)

* Add basics of VideoPreviewer to build on

* WIP

* Minimal working code, todo next:dimension + MTC

* Nits

* Change back to GetImageSize as it indeed doesn't work with videos

* Add win32 helper methods to get video size; Refactor get size operation;

* Remove unused code

* Set VideoTask; Add message error for HR result;

* Add open read only for filestream

* Remove unused code

* Update expect.txt

* Remove comment

* Cleanup code

* Force pause videopreview on previewer change

---------

Co-authored-by: Jojo Zhou <yizzho@microsoft.com>
Co-authored-by: Yawen Hou <yawenhou@microsoft.com>
Co-authored-by: Clint Rutkas <clint@rutkas.com>
Co-authored-by: Yawen Hou <Sytta@users.noreply.github.com>
Co-authored-by: Samuel Chapleau 🌈 <sachaple@microsoft.com>

src/modules/peek/Peek.FilePreviewer/FilePreview.xaml

@@ -26,6 +26,22 @@
             ToolTipService.ToolTip="{x:Bind ImageInfoTooltip, Mode=OneWay}"
             Visibility="{x:Bind IsPreviewVisible(ImagePreviewer, Previewer.State), Mode=OneWay}" />
 
+        <MediaPlayerElement
+            x:Name="VideoPreview"
+            AreTransportControlsEnabled="True"
+            AutoPlay="True"
+            Source="{x:Bind VideoPreviewer.Preview, Mode=OneWay}"
+            ToolTipService.ToolTip="{x:Bind ImageInfoTooltip, Mode=OneWay}"
+            Visibility="{x:Bind IsPreviewVisible(VideoPreviewer, Previewer.State), Mode=OneWay}">
+            <MediaPlayerElement.TransportControls>
+                <MediaTransportControls
+                    x:Name="mediaTransport"
+                    Width="auto"
+                    MaxWidth="420"
+                    IsCompact="True" />
+            </MediaPlayerElement.TransportControls>
+        </MediaPlayerElement>
+
         <controls:BrowserControl
             x:Name="BrowserPreview"
             x:Load="True"