VS: Properly reference included external C# projects
If the referenced target is a C# target or the path terminate with csproj
postfix then don't check again if the target is manged or not because obviously it is.
Fixes: #20391 (closed)
If the referenced target is a C# target or the path terminate with csproj
postfix then don't check again if the target is manged or not because obviously it is.
Fixes: #20391 (closed)