Update README.md, Added sqlc-php

README.md

 * [RedBean](https://redbeanphp.com/index.php) - A lightweight, configuration-less ORM.
 * [Slimdump](https://github.com/webfactory/slimdump) - An easy dumper tool for MySQL.
 * [Spot2](https://github.com/spotorm/spot2) - A MySQL datamapper ORM.
+* [Sqlc-php](https://github.com/phpibe/sqlc-php) - Compile SQL to type-safe code.
 
 ### Migrations
 *Libraries to help manage database schemas and migrations.*