fix: add migrations to create "towns" table (opentibiabr#859)

Complement of: opentibiabr@abdf22f

data-otservbr-global/migrations/26.lua

@@ -1,3 +1,15 @@
 function onUpdateDatabase()
-	return false -- true = There are others migrations file | false = this is the last migration file
+	Spdlog.info("Updating database to version 27 (towns)")
+
+	db.query([[
+	CREATE TABLE IF NOT EXISTS `towns` (
+		`id` int NOT NULL AUTO_INCREMENT,
+		`name` varchar(255) NOT NULL,
+		`posx` int NOT NULL DEFAULT '0',
+		`posy` int NOT NULL DEFAULT '0',
+		`posz` int NOT NULL DEFAULT '0',
+		PRIMARY KEY (`id`),
+		UNIQUE KEY `name` (`name`))
+	]])
+	return true
 end

data-otservbr-global/migrations/27.lua

@@ -0,0 +1,3 @@
+function onUpdateDatabase()
+	return false -- true = There are others migrations file | false = this is the last migration file
+end