Refactor Otherlevel.cpp to not use strings for tilemaps

Instead, they're all held in a constant int array instead.

desktop_version/src/Map.cpp

@@ -1306,8 +1306,7 @@ void mapclass::loadlevel(int rx, int ry)
 	case 1: //World Map
 		tileset = 1;
 		extrarow = 1;
-		tmap = otherlevel.loadlevel(rx, ry);
-		fillcontent(tmap);
+		contents = otherlevel.loadlevel(rx, ry);
 		roomname = otherlevel.roomname;
 		tileset = otherlevel.roomtileset;
 		//do the appear/remove roomname here

desktop_version/src/Otherlevel.h

@@ -27,7 +27,7 @@ public:
     };
 
     void addline(std::string t);
-    std::vector<std::string> loadlevel(int rx, int ry);
+    std::vector<int> loadlevel(int rx, int ry);
 
     std::string roomname;