trainer buildings granted 3 slots at r1

src/engine/Enum.java

@@ -1655,6 +1655,24 @@ public class Enum {
             return extents;
         }
 
+        public boolean isTrainerBuilding(){
+            switch(this){
+                case AMAZONHALL:
+                case CATHEDRAL:
+                case GREATHALL:
+                case KEEP:
+                case THIEFHALL:
+                case TEMPLEHALL:
+                case WIZARDHALL:
+                case ELVENHALL:
+                case ELVENSANCTUM:
+                case IREKEIHALL:
+                case FORESTHALL:
+                    return true;
+            }
+            return false;
+        }
+
     }
 
     public enum UpdateType {