Add new properties to Windows Forms types schema

[RussKie]

Windows Forms has added new application bootstrap functionality which is getting shipped in .NET 6.0 and Dev17 that relies on the new MSBuild properties:

  <PropertyGroup>
     <ApplicationIcon />
     <ApplicationManifest>app1.manifest</ApplicationManifest>

+    <!--
+       Purpose: controls whether to emit: Application.EnableVisualStyles();
+       Default=true
+       Empty value=true
+     -->
+    <ApplicationVisualStyles>[true|false]</ApplicationVisualStyles>

+    <!--
+       Purpose: the value in: Application.SetCompatibleTextRenderingDefault(...);
+       Default=false
+       Empty value=false
+     -->
+    <ApplicationUseCompatibleTextRendering>[true|false]</ApplicationUseCompatibleTextRendering>

+    <!--
+       Purpose: contains a custom font information; controls whether to emit: Application.SetDefaultFont(new Font(....));
+       Default=''
+       Empty value='', implies Control.DefaultFont
+     -->
+    <ApplicationDefaultFont>[equivalent to Font.ToString()]</ApplicationDefaultFont>


+    <!--
+       Purpose: the value in: Application.SetHighDpiMode(...);
+       Default=SystemAware
+       Empty value=SystemAware
+     -->
+    <ApplicationHighDpiMode>[string/HighDpiMode enum value]</ApplicationHighDpiMode>
  </PropertyGroup>

These properties should live alongside other properties Windows Forms apps use, such as:

• ApplicationIcon
• ApplicationManifest
• StartupObject

I'm happy to get these new properties added myself, but would like some guidance on how to do this.