Main program IO project created

csharp/App/GpioTestingProject/Program.cs

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+using System;
+using System.Threading;
+using GPIORaspberryPI4;
+
+namespace InnovEnergy.App.GpioTestingProject;
+
+static class Program
+{
+    static void Main(string[] args)
+    {
+        Console.WriteLine("GPIO17 Relay Test Starting...");
+
+        using IRelayOutput relay = new RelayOutput(pin: 27, activeLow: false);
+        using IDigitalInput input = new DigitalInput(pin: 17, pullUp: true, activeLow: true);
+
+        try
+        {
+            while (true)
+            {
+                if (input.Read())
+                {
+                    relay.On();
+                    Console.Write("\rInput ACTIVE -> Relay ON   ");
+                }
+                else
+                {
+                    relay.Off();
+                    Console.Write("\rInput INACTIVE -> Relay OFF   ");
+                }
+
+                Thread.Sleep(100);
+            }
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"ERROR: {ex.Message}");
+        }
+    }
+}