C++: Add il2cpp_thread_attach in Run()

Il2CppInspector.Common/Properties/Resources.resx

@@ -273,6 +273,9 @@ extern const LPCWSTR LOG_FILE = L"il2cpp-log.txt";
 // Custom injected code entry point
 void Run()
 {
+    // Initialize thread data - DO NOT REMOVE
+    il2cpp_thread_attach(il2cpp_domain_get());
+
     // If you would like to write to a log file, specify the name above and use il2cppi_log_write()
     // il2cppi_log_write("Startup");