Major upgrade

Source/Program/GUI/ViewModel/ManualWindowViewModel.cs

@@ -0,0 +1,41 @@
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Threading;
+
+using CommunityToolkit.Mvvm.ComponentModel;
+using ProgramLib.GUI.Model;
+
+namespace ProgramGui.GUI.ViewModel
+{
+   internal partial class ManualWindowViewModel : ObservableObject
+   {
+      public enum Images
+      {
+         LED_ON,
+         LED_OFF
+      }
+
+      public Dictionary<Images, string> _imageToResourcePathDict;
+
+      public ObservableCollection<CoeMessageDataModel> _coeMessageDataItems { get; set; }
+
+      public ObservableCollection<PowerModuleDataModel> _poweredModuleDataItems { get; set; }
+
+      public ObservableCollection<PowerModuleDataModel> _powerModuleComboBoxDataItems { get; set; }
+
+      private Semaphore _poweredModuleDataItemsSemObj = new Semaphore(initialCount: 1, maximumCount: 1);
+
+      public ManualWindowViewModel()
+      {
+         _coeMessageDataItems = new ObservableCollection<CoeMessageDataModel>();
+
+         _imageToResourcePathDict = new Dictionary<Images, string>()
+         {
+            {Images.LED_ON, @$"pack://application:,,,/{GetType().Assembly.GetName().Name};component/Resources/Images/green-led.png" },
+            {Images.LED_OFF, @$"pack://application:,,,/{GetType().Assembly.GetName().Name};component/Resources/Images/black-led.png" }
+         };
+      }
+
+      public Semaphore GetPoweredModuleDataItemsSem() { return _poweredModuleDataItemsSemObj; }
+   }
+}