* Feature - Add funds to the customer account on registration.
* Tweak - Moved the 'Partial Funds Payment' setting to the top of the settings page.
* Tweak - Validate the price type fields on the settings page.
* Tweak - Toggle visibility of the dependant settings fields.
* Tweak - Tested compatibility with WC 5.9.
* Dev - Deprecated filter hook `woocommerce_account_funds_get_settings`.
* Dev - Updated the minimum requirements to WC 3.4, WP 4.7, and PHP 5.4