Add Editor config for Linux

Source/FlaxEditor.Build.cs

@@ -22,6 +22,7 @@ public class FlaxEditor : EngineTarget
         Platforms = new[]
         {
             TargetPlatform.Windows,
+            TargetPlatform.Linux,
         };
         Architectures = new[]
         {
@@ -57,6 +58,9 @@ public class FlaxEditor : EngineTarget
             default: throw new InvalidArchitectureException(options.Architecture, "Not supported Editor architecture.");
             }
             break;
+        case TargetPlatform.Linux:
+            options.OutputFolder = Path.Combine(options.WorkingDirectory, "Binaries", "Editor", "Linux", options.Configuration.ToString());
+            break;
         default: throw new InvalidPlatformException(options.Platform.Target, "Not supported Editor platform.");
         }
     }