Support multiple php versions

Support for:

• PHP 7.4, 8.0, 8.1

bump minimum PHP version to 7.2

2.0.0

update changelog

Minor improvement by using `\in_array`

1.1.2

use `\in_array` instead of `in_array`

1.1.1

Move the Tests namespace to the autoload_dev

1.1.0

Enablement of strict types

1.0.0

Initial release