Units automatically path around known hazards (eg static base defenses). Test using SAM and TRAN.

Todo: Ignore hazards when force-moving; Apply only to known enemy hazards; Implement more hazard classes

Also add a few files I forgot from previous patches

OpenRA.Game/GameRules/UserSettings.cs

@@ -23,8 +23,8 @@ namespace OpenRA.GameRules
 	public class UserSettings
 	{
 		// Debug settings
-		public bool UnitDebug = false;
-		public bool PathDebug = false;
+		public bool UnitDebug = true;
+		public bool PathDebug = true;
 		public bool PerfDebug = true;
 		public bool IndexDebug = false;
 		public bool RecordSyncReports = true;