Add support for various annotation formats

[TomasVotruba]

People write annotation in various format, that are still valid in PHP thanks to case sensitivity and use statements. We should add such support here as well

Before Only

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Id
 */ 

After

use Doctrine\ORM\Mapping as ORM;
use Doctrine\ORM\Mapping\Id;

/**
 * @ORM\Id
 * @Orm\id
 * @Id 
 */