fix nuget package

Author: jogibear9988

nuget/WpfDesigner.ExpressionBlendInteractionAddon.nuspec

@@ -14,6 +14,10 @@
     <copyright>Copyright (c) 2015-2021 IC#Code</copyright>
 	<language>en-US</language>
 	<tags>WPF XAML Designer UI Editor SharpDevelop WpfDesigner</tags>
+	<dependencies>
+      <group targetFramework=".NETFramework4.5" />
+	  <group targetFramework="net5.0-windows" />
+    </dependencies>
   </metadata>
   <files>
     <file src="..\WpfDesign.Design.ExpressionBlendInteractionAddon\bin\Release\net45\ICSharpCode.WpfDesign.Designer.ExpressionBlendInteractionAddon.dll" target="lib\net45" />

nuget/WpfDesigner.nuspec

@@ -14,6 +14,10 @@
     <copyright>Copyright (c) 2015-2021 IC#Code</copyright>
 	<language>en-US</language>
 	<tags>WPF XAML Designer UI Editor SharpDevelop WpfDesigner</tags>
+	<dependencies>
+      <group targetFramework=".NETFramework4.5" />
+	  <group targetFramework="net5.0-windows" />
+    </dependencies>
   </metadata>
   <files>
     <file src="..\bin\net45\ICSharpCode.WpfDesign.Designer.dll" target="lib\net45" />

nuget/pack.ps1

@@ -13,12 +13,12 @@ $content = $content -replace '\$releasenotes\$',$env:APPVEYOR_REPO_COMMIT_MESSAG
 
 $content | Out-File $root\nuget\WpfDesigner.compiled.nuspec
 
-NuGet pack $root\nuget\WpfDesigner.compiled.nuspec
+$root\nuget\nuget.exe pack $root\nuget\WpfDesigner.compiled.nuspec
 
 $content = (Get-Content $root\NuGet\WpfDesigner.ExpressionBlendInteractionAddon.nuspec) 
 $content = $content -replace '\$version\$',$versionStr
 $content = $content -replace '\$releasenotes\$',$env:APPVEYOR_REPO_COMMIT_MESSAGE
 
 $content | Out-File $root\nuget\WpfDesigner.ExpressionBlendInteractionAddon.compiled.nuspec
 
-NuGet pack $root\nuget\WpfDesigner.ExpressionBlendInteractionAddon.compiled.nuspec
+$root\nuget\nuget.exe pack $root\nuget\WpfDesigner.ExpressionBlendInteractionAddon.compiled.nuspec