Preserve current state before big refactor

addons/deploy_to_steamos/SettingsFile.cs

@@ -0,0 +1,13 @@
+public class SettingsFile
+{
+    public enum UploadMethods
+    {
+        Differential,
+        Incremental,
+        CleanReplace
+    }
+    
+    public string BuildPath { get; set; } = "";
+    public string StartParameters { get; set; } = "";
+    public UploadMethods UploadMethod { get; set; } = UploadMethods.Differential;
+}