Refactor process spawning command and move TestProcess to its own file

Processes/TestProcess.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Threading.Tasks;
+using RemSox.Processing;
+using RemSox.Processing.IPC;
+using RemSox.UI.GUI.UIEelements.Shapes;
+using RemSox.UI.GUI.Windows;
+
+namespace RemSox.Processes;
+
+public class TestProcess() : Process("Test Process")
+{
+    internal override void Start(string[] args)
+    {
+        Window window = WindowManager.CreateWindow(this, "Test Window", Point.Empty, new Size(200, 150));
+        window.AutoFlush = true;
+
+        Circle circle = window.CreateUIElement<Circle>(rect =>
+        {
+            rect.Position = new Point(10, 10);
+            rect.Radius = 50;
+            rect.Color = Color.Red;
+        });
+
+        circle.Radius = 40;
+
+        SendMessageToAllProcesses(new TestMessage { SenderProcessId = Id });
+    }
+
+    internal override void Tick()
+    {
+        // Example tick logic - could be used for animations, timed events, etc.
+    }
+
+    internal override void HandleInterProcessMessage(Message message)
+    {
+        if (message is TestMessage testMessage && message.SenderProcessId != Id)
+        {
+            Console.WriteLine($"Received message in {Name} (ID: {Id}): {testMessage.MessageText}");
+        }
+    }
+}
+
+internal class TestMessage : Message
+{
+    public string MessageText { get; set; } = "Hello from TestMessage!";
+}