Add Auto Casting a variable using [ $casts ]

[mean-cj]

• Thank you jenssegers for the best inspiration
• Thank you https://github.com/cviebrock/eloquent-typecast

Eloquest Config

protected $casts_override = true;
protected $casts = [
    'id' => 'integer',
    'name' => 'string'
];

[amiri27]

@jenssegers I think you can merge #834 and close this pull request.

[iZaL]

any plan on merging this PR ?