5 minute upgrades for initial placement

src/engine/gameManager/BuildingManager.java

@@ -258,7 +258,7 @@ public enum BuildingManager {
         if (building == null)
             return;
 
-
+            building.upgradeDateTime = LocalDateTime.now().plusMinutes(5);
         if (building.getUpgradeDateTime() == null) {
             Logger.error("Attempt to submit upgrade job for non-ranking building");
             return;