Add merge block support to sequencer.

ActionSequencer/Program.cs

@@ -1,4 +1,5 @@
 using Sandbox.ModAPI.Ingame;
+using SpaceEngineers.Game.ModAPI.Ingame;
 using System;
 using System.Collections.Generic;
 using VRage.Game.ModAPI.Ingame.Utilities;
@@ -169,6 +170,26 @@ namespace IngameScript
                     Ini.Get(key, "velocity").ToSingle(2f)
                 );
             }
+            else if (block is IMyShipMergeBlock)
+            {
+                MergeAction action;
+                string config = Ini.Get(key, "action").ToString("merge").ToLower();
+                switch (config)
+                {
+                    case "merge":
+                        action = MergeAction.Merge;
+                        break;
+                    case "unmerge":
+                        action = MergeAction.Unmerge;
+                        break;
+                    default:
+                        Console.Print($"Unknown action '{config}. Defaulting to merge.");
+                        action = MergeAction.Merge;
+                        break;
+                }
+                return new BlockActionMerge(block as IMyShipMergeBlock, action);
+            }
+            // TODO: there are several block types added for other scripts that we should support here.
 
             Console.Print($"Can't add unsupported block '{block.CustomName}'");
             return null;