Fix native build in latest VS / CMake

Author: ericstj

src/Native/LibTorchSharp/CMakeLists.txt

@@ -79,13 +79,13 @@ if(APPLE)
     set_target_properties(LibTorchSharp PROPERTIES INSTALL_RPATH "@loader_path;@executable_path;")
 endif()
 
-if(NOT WIN32)
-    # Set C++ standard
-    set_target_properties(LibTorchSharp PROPERTIES
-        CXX_STANDARD 17
-        CXX_STANDARD_REQUIRED ON
-    )
+# Set C++ standard
+set_target_properties(LibTorchSharp PROPERTIES
+    CXX_STANDARD 17
+    CXX_STANDARD_REQUIRED ON
+)
 
+if(NOT WIN32)
     # Add C++ specific compile options
     target_compile_options(LibTorchSharp PRIVATE
         $<$<COMPILE_LANGUAGE:CXX>:-std=c++17>