Install commands, improvements

src/Alma.Logging/ILogger.cs

@@ -7,4 +7,6 @@ public interface ILogger<T>
     void LogDebug(string logMessage);
     void LogTrace(string logMessage);
     void Log(string logMessage, LogLevel logLevel);
+    void LogError(string logMessage);
+    void LogCritical(string logMessage);
 }

src/Alma.Logging/LogLevel.cs

@@ -2,6 +2,8 @@
 
 public enum LogLevel
 {
+    Critical,
+    Error,
     Information,
     Debug,
     Trace

src/Alma.Logging/Logger.cs

@@ -22,4 +22,14 @@ public class Logger<T> : ILogger<T>
             Console.WriteLine(s);
         }
     }
+
+    public void LogError(string logMessage)
+    {
+        Log(logMessage, LogLevel.Error);
+    }
+
+    public void LogCritical(string logMessage)
+    {
+        Log(logMessage, LogLevel.Critical);
+    }
 }