modify to include pdbs

Terminal.Gui/Terminal.Gui.csproj

@@ -186,6 +186,11 @@
     </PackageReleaseNotes>
   </PropertyGroup>
 
+  <PropertyGroup>
+    <IncludeSymbols>true</IncludeSymbols>
+    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
+</PropertyGroup>
+
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType></DebugType>
   </PropertyGroup>