Added GpioService.

Proculite.GpioRest/Program.cs

@@ -1,3 +1,5 @@
+using Proculite.GpioRest.Services;
+
 var builder = WebApplication.CreateBuilder(args);
 
 // Add services to the container.
@@ -6,6 +8,8 @@ builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddSwaggerGen();
 builder.Services.AddControllers();
 
+builder.Services.AddSingleton<GpioService>();
+
 var app = builder.Build();
 
 app.MapControllers();

Proculite.GpioRest/Services/GpioService.cs

@@ -0,0 +1,11 @@
+namespace Proculite.GpioRest.Services
+{
+    public class GpioService
+    {
+        public readonly ILogger<GpioService> _logger;
+        public GpioService(ILogger<GpioService> logger)
+        {
+            _logger = logger;
+        }
+    }
+}