Elasticsearch configuration to enable asciifolding

SugarElasticsearchConfgWithAsciifolding.php

<?php

$sugar_config['full_text_engine']['Elastic']['index_settings']['default']['index'] = array(
    'analysis' => array(
        'analyzer' => array(
            'core_email_lowercase' => array(
                'type' => 'custom',
                'tokenizer' => 'uax_url_email',
                'filter' => array(
                    'lowercase',
                ),
            ),
            'standard' => array(
                'type' => 'custom',
                'tokenizer' => 'standard',
                'filter' => array(
                    'asciifolding',
                    'lowercase',
                ),
            ),
        ),
    ),
);