feat(transport): scaffold ScadaLink.Transport project + test projects

src/ScadaLink.Transport/ServiceCollectionExtensions.cs

@@ -0,0 +1,15 @@
+using Microsoft.Extensions.DependencyInjection;
+
+namespace ScadaLink.Transport;
+
+public static class ServiceCollectionExtensions
+{
+    public const string OptionsSection = "ScadaLink:Transport";
+
+    public static IServiceCollection AddTransport(this IServiceCollection services)
+    {
+        ArgumentNullException.ThrowIfNull(services);
+        // Concrete services and options binding added in later tasks.
+        return services;
+    }
+}