document field options

[quasel]

Field Options are based on the Pods Configuration array to be used mainly as filter in recurse_pod_fields()

Examples:

$field_options['type'] = 'file';
$field_options['type'] = 'color';
$field_options['options']['file_format_type'] = 'single'
$field_options['options']['file_format_type'] = 'multi';

file is used for images to catch the "custom setting" :/

Special Options to change the output from recurse_pod_fields()

$field_options['add_pod_name'] = 'true';
$field_options['base_pod_name'] = 'pod_name'

was introduce especially for settings&user pods as they are "side wide options" and we need to know and add the pod_name to '$settings' as its not based on get_post_type() see GitHub