Missing filters

Hi guys,

Thank you for your hard work on this plugin.

I have a request. Can you please add filters and actions where possible.
An example on line 110:

$this->form_fields = array(

to

$this->form_fields = apply_filters( 'woocommerce_eurobank_form_fields', array(

or line 235

echo $doseis_field;

to

echo apply_filters( 'woocommerce_eurobank_doseis_field', $doseis_field );
do_action( 'after_eurobank_doseis_field', $max_installments, $installments_variation,  $order_id, $order );

Thank you in advance!

Best regards,
Spyros