Working checkout_controller.rb that charges Stripe

* Add billing address setting

config/locales/server.en.yml

@@ -7,6 +7,7 @@ en:
     discourse_donations_shop_name: "Stripe Shop Name"
     discourse_donations_currency: "Currency Code"
     discourse_donations_hide_zip_code: "Hide Zip Code"
+    discourse_donations_billing_address: "Collect billing address"
     discourse_donations_reward_badge_name: "Grant this badge to user when a payment is successful"
     discourse_donations_reward_group_name: "Add the user to this group when a payment is successful"
 en:

config/routes.rb

@@ -1,5 +1,6 @@
 DiscourseDonations::Engine.routes.draw do
-  resources :charges, only: [:create, :checkout]
+  resources :charges, only: [:create]
+  resources :checkout, only: [:create]
   get 'users/:username/payments' => 'payments#show'
   get 'donate' => 'payments#show'
 end

config/settings.yml

@@ -23,6 +23,9 @@ plugins:
   discourse_donations_hide_zip_code:
     default: true
     client: true
+  discourse_donations_billing_address:
+    default: true
+    client: true
   discourse_donations_reward_badge_name:
     client: false
     default: 'Donation'