Move WooCommerce hooks to global functions and remove init method

[joshcanhelp]

Changes

This is a potential (though unlikely) breaking change for developers!

• BREAKING: Remove deprecated \WP_Auth0_WooCommerceOverrides:: init() method
• BREAKING: Enforce WP_Auth0_WooCommerceOverrides constructor accepts a WP_Auth0_Options instance
• Switch woocommerce_checkout_login_message hooked function from \WP_Auth0_WooCommerceOverrides::override_woocommerce_checkout_login_form() to new wp_auth0_filter_woocommerce_checkout_login_message()
• Switch woocommerce_before_customer_login_form hooked function from \WP_Auth0_WooCommerceOverrides::override_woocommerce_login_form() to new wp_auth0_filter_woocommerce_before_customer_login_form()
• Add a check for plugin readiness

Checklist

• All existing and new tests complete without errors
• All code quality tools/guidelines in the Contribution guide have been run/followed
• All active GitHub CI checks have passed

[lbalmaceda]

Can you please expand on how this is a breaking change? And, if that's true, can't the current existing methods call the new ones to keep compatibility without breaking anything?

[joshcanhelp]

@lbalmaceda - I highlighted the breaking changes in the description. This is on the road to a major so breaking is expected. The removed method was marked deprecated and very unlikely to be used. There will be a number of 4.0.0 tagged breaking changes coming.

[lbalmaceda]

@joshcanhelp Sorry I missed the milestone.