Convert .sln solution file to .slnx format

Author: vbaderks

ConvertProjDepToProjRef.sln

@@ -0,0 +1,17 @@
+<!---
+SPDX-FileCopyrightText: © 2025 Victor Derks
+SPDX-License-Identifier: MIT
+-->
+
+<Solution>
+  <Folder Name="/Solution Items/">
+    <File Path=".editorconfig" />
+    <File Path="CHANGELOG.md" />
+    <File Path="create-signed-release.cmd" />
+    <File Path="Directory.Build.props" />
+    <File Path="Directory.Packages.props" />
+    <File Path="nuget.config" />
+    <File Path="README.md" />
+  </Folder>
+  <Project Path="src/ConvertProjDepToProjRef.csproj" />
+</Solution>