TODO: Move Form Data to lot Context

[taufik-nurrohman]

So that I can do more with the form data such as to add validator and filter rules.

Before

$_['form'] = [ /* ... */ ]; // Dynamically generated from form submission or query string in URL

After

$_['form'] = [
    'error' => [ /* ... */ ], // Validator task(s)
    'info' => [ /* ... */ ], // Filter task(s)
    'lot' => [ /* ... */ ], // Dynamically generated from form submission or query string in URL
    'type' => 'post' // Taken from `$_SERVER['REQUEST_METHOD']`
];