Tests for saving and loading shops

- Fix shop name not being loaded from the file
- Fix skills in shops not storing the skill ID

src/classes/shop.cpp

@@ -209,6 +209,7 @@ void cShop::replaceSpecial(size_t i, eShopItemType type, int n) {
 		items[i].item = store_alchemy(n);
 	else if(type == eShopItemType::SKILL) {
 		items[i].item.graphic_num = 108;
+		items[i].item.item_level = n;
 		items[i].item.full_name = get_str("skills", n * 2 + 1);
 	} else if(type == eShopItemType::TREASURE) {
 		items[i].item.graphic_num = 45;

src/tools/fileio_scen.cpp

@@ -554,7 +554,7 @@ static void readShopFromXml(ticpp::Element& data, cShop& shop) {
 					}
 					if(!reqs.empty())
 						throw xMissingElem("special", *reqs.begin(), entry->Row(), entry->Column(), fname);
-					shop.addSpecial(name, descr, icon, node, cost, amount);
+					shop.addSpecial(title, descr, icon, node, cost, amount);
 				} else {
 					eShopItemType itype;
 					int n = 0;