Make Windows10SDK detection more robust

- fixes #1145

src/Core/Toolchains/MSVCToolchain.cs

@@ -637,11 +637,15 @@ namespace CppSharp
                             includes.Add(path + @"\VC\Tools\MSVC\" + version + @"\atlmfc\include");
                         }
                         var sdks = from package in packages
-                                   where package.GetId().Contains("Windows10SDK") || package.GetId().Contains("Windows81SDK") || package.GetId().Contains("Win10SDK_10")
+                                   where package.GetId().Contains("Windows10SDK") ||
+                                         package.GetId().Contains("Windows81SDK") ||
+                                         package.GetId().Contains("Win10SDK_10")
                                    select package;
                         var win10sdks = from sdk in sdks
-                                        where sdk.GetId().Contains("Windows10SDK")
+                                        where regexWinSDK10Version.Match(sdk.GetId()).Success
+                                        orderby sdk.GetId()
                                         select sdk;
+
                         var win8sdks = from sdk in sdks
                                        where sdk.GetId().Contains("Windows81SDK")
                                        select sdk;
@@ -660,7 +664,7 @@ namespace CppSharp
                             }
                             else
                             {
-                                path = "<invalid>";
+                              throw new Exception("Windows10SDK should not have been detected, something is terribly wrong");
                             }
                             var shared = Path.Combine(path, "shared");
                             var um = Path.Combine(path, "um");