Only display controls where UAP is supported

When specified with "UIFramework" tag on the controls, we ensure that the controls doesn't list in places where UWP UI/WinUI is not supported.

Microsoft.Toolkit.Uwp.DeveloperTools/VisualStudioToolsManifest.xml

@@ -1,6 +1,8 @@
 <FileList>
   <File Reference="Microsoft.Toolkit.Uwp.DeveloperTools.dll">
-    <ToolboxItems VSCategory="Windows Community Toolkit" BlendCategory="Windows Community Toolkit">
+    <ToolboxItems UIFramework="UAP"
+        VSCategory="Windows Community Toolkit"
+        BlendCategory="Windows Community Toolkit">
       <Item Type="Microsoft.Toolkit.Uwp.DeveloperTools.AlignmentGrid" />
       <Item Type="Microsoft.Toolkit.Uwp.DeveloperTools.FocusTracker" />
     </ToolboxItems>

Microsoft.Toolkit.Uwp.UI.Controls.Core/VisualStudioToolsManifest.xml

@@ -1,6 +1,8 @@
 <FileList>
   <File Reference="Microsoft.Toolkit.Uwp.UI.Controls.Core.dll">
-    <ToolboxItems VSCategory="Windows Community Toolkit" BlendCategory="Windows Community Toolkit">
+    <ToolboxItems UIFramework="UAP"
+        VSCategory="Windows Community Toolkit"
+        BlendCategory="Windows Community Toolkit">
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.CameraPreview" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.DropShadowPanel" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.ImageEx" />

Microsoft.Toolkit.Uwp.UI.Controls.DataGrid/VisualStudioToolsManifest.xml

@@ -1,6 +1,8 @@
 <FileList>
   <File Reference="Microsoft.Toolkit.Uwp.UI.Controls.DataGrid.dll">
-    <ToolboxItems VSCategory="Windows Community Toolkit" BlendCategory="Windows Community Toolkit">
+    <ToolboxItems UIFramework="UAP"
+        VSCategory="Windows Community Toolkit"
+        BlendCategory="Windows Community Toolkit">
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.DataGrid" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.DataGridCell" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.DataGridCellsPresenter" />

Microsoft.Toolkit.Uwp.UI.Controls.Input/VisualStudioToolsManifest.xml

@@ -1,6 +1,8 @@
 <FileList>
   <File Reference="Microsoft.Toolkit.Uwp.UI.Controls.Input.dll">
-    <ToolboxItems VSCategory="Windows Community Toolkit" BlendCategory="Windows Community Toolkit">
+    <ToolboxItems UIFramework="UAP"
+        VSCategory="Windows Community Toolkit"
+        BlendCategory="Windows Community Toolkit">
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.ColorPicker" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.ColorPickerButton" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.ColorPickerSlider" />

Microsoft.Toolkit.Uwp.UI.Controls.Layout/VisualStudioToolsManifest.xml

@@ -1,6 +1,8 @@
 <FileList>
   <File Reference="Microsoft.Toolkit.Uwp.UI.Controls.Layout.dll">
-    <ToolboxItems VSCategory="Windows Community Toolkit" BlendCategory="Windows Community Toolkit">
+    <ToolboxItems UIFramework="UAP"
+        VSCategory="Windows Community Toolkit"
+        BlendCategory="Windows Community Toolkit">
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.BladeItem" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.BladeView" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.Carousel" />

Microsoft.Toolkit.Uwp.UI.Controls.Markdown/VisualStudioToolsManifest.xml

@@ -1,6 +1,8 @@
 <FileList>
   <File Reference="Microsoft.Toolkit.Uwp.UI.Controls.Markdown.dll">
-    <ToolboxItems VSCategory="Windows Community Toolkit" BlendCategory="Windows Community Toolkit">
+    <ToolboxItems UIFramework="UAP"
+        VSCategory="Windows Community Toolkit"
+        BlendCategory="Windows Community Toolkit">
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.MarkdownTextBlock" />
     </ToolboxItems>
   </File>

Microsoft.Toolkit.Uwp.UI.Controls.Media/VisualStudioToolsManifest.xml

@@ -1,6 +1,8 @@
 <FileList>
   <File Reference="Microsoft.Toolkit.Uwp.UI.Controls.Media.dll">
-    <ToolboxItems VSCategory="Windows Community Toolkit" BlendCategory="Windows Community Toolkit">
+    <ToolboxItems UIFramework="UAP"
+        VSCategory="Windows Community Toolkit"
+        BlendCategory="Windows Community Toolkit">
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.Eyedropper" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.EyedropperToolButton" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.ImageCropper" />

Microsoft.Toolkit.Uwp.UI.Controls.Primitives/VisualStudioToolsManifest.xml

@@ -1,6 +1,8 @@
 <FileList>
   <File Reference="Microsoft.Toolkit.Uwp.UI.Controls.Primitives.dll">
-    <ToolboxItems VSCategory="Windows Community Toolkit" BlendCategory="Windows Community Toolkit">
+    <ToolboxItems UIFramework="UAP"
+        VSCategory="Windows Community Toolkit"
+        BlendCategory="Windows Community Toolkit">
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.AdaptiveGridView" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.DockPanel" />
       <Item Type="Microsoft.Toolkit.Uwp.UI.Controls.StaggeredLayout" />