Add Log {Led and Message} for Salimax status and alarm

csharp/App/SaliMax/src/Ess/LedState.cs

@@ -0,0 +1,8 @@
+namespace InnovEnergy.App.SaliMax.Ess;
+
+public enum LedState
+{
+    Red,
+    Orange,
+    Green
+}

csharp/App/SaliMax/src/Program.cs

@@ -131,6 +131,7 @@ internal static class Program
                 
                 StateMachine     = StateMachine.Default,  
                 EssControl       = EssControl.Default,
+                Log              = new SystemLog{Led = LedState.Green, Message = null}, //TODO: Put real stuff
                 Config           = Config.Load() // load from disk every iteration, so config can be changed while running
             };
         }
@@ -183,7 +184,7 @@ internal static class Program
             record.ControlConstants();
             record.ControlSystemState();
 
-            $"{DateTime.Now} : {record.StateMachine.State}: {record.StateMachine.Message}".WriteLine().LogInfo();
+            $"{UnixTime.Now} : {record.StateMachine.State}: {record.StateMachine.Message}".WriteLine().LogInfo();
             
             var essControl = record.ControlEss().WriteLine().LogInfo();