title: How do I change the label/text of "Cash on Delivery" in WooCommerce?
body: <p>I want to change the text label from "Cash on Delivery" to "Pay Cash in Person", but I can't figure out how to target a hook and make these changes. I know that I should be targeting the 'default' within 'title' => array(), but not sure how to go about this.</p>
  
  <pre><code>    $this-&gt;form_fields = array(
          'enabled' =&gt; array(
              'title'       =&gt; __( 'Enable/Disable', 'woocommerce' ),
              'label'       =&gt; __( 'Enable cash on delivery', 'woocommerce' ),
              'type'        =&gt; 'checkbox',
              'description' =&gt; '',
              'default'     =&gt; 'no',
          ),
          'title' =&gt; array(
              'title'       =&gt; __( 'Title', 'woocommerce' ),
              'type'        =&gt; 'text',
              'description' =&gt; __( 'Payment method description that the customer will see on your checkout.', 'woocommerce' ),
              'default'     =&gt; __( 'Cash on delivery', 'woocommerce' ),
              'desc_tip'    =&gt; true,
          ),
          'description' =&gt; array(
              'title'       =&gt; __( 'Description', 'woocommerce' ),
              'type'        =&gt; 'textarea',
              'description' =&gt; __( 'Payment method description that the customer will see on your website.', 'woocommerce' ),
              'default'     =&gt; __( 'Pay with cash upon delivery.', 'woocommerce' ),
              'desc_tip'    =&gt; true,
          ),
  </code></pre>