Add "subscriptions" to Woocommerce Endpoints List

[bydrewpaul]

Describe the feature request

I edited your plugin to add an endpoint for a WooCommerce Subscription Plugin, and was hoping to have it updated to avoid needing to alter it each update or hack the plugin.

Use case

I currently downloaded a plugin extension for WooCommerce called Subscriptions. It has an endpoint of 'subscriptions' for users to view their subscription data.

Example screenshots (if any)

[fpcorso]

@bydrewpaul Thanks for submitting the pull request! We have now merged it into develop and it will be included in our 1.12 update.