MAGETWO-48649: Quantity for invoice cannot be changed in PayPal Braintree

Author: Yushkin, Dmytro

app/code/Magento/BraintreeTwo/etc/config.xml

@@ -52,6 +52,7 @@
                 <can_use_checkout>1</can_use_checkout>
                 <can_authorize>1</can_authorize>
                 <can_capture>1</can_capture>
+                <can_capture_partial>1</can_capture_partial>
                 <can_refund>1</can_refund>
                 <can_refund_partial_per_invoice>1</can_refund_partial_per_invoice>
                 <can_void>1</can_void>

app/code/Magento/BraintreeTwo/etc/di.xml

@@ -318,6 +318,7 @@
                 <item name="default" xsi:type="string">BraintreeTwoPayPalConfigValueHandler</item>
                 <item name="can_void" xsi:type="string">Magento\BraintreeTwo\Gateway\Config\CanVoidHandler</item>
                 <item name="can_cancel" xsi:type="string">Magento\BraintreeTwo\Gateway\Config\CanVoidHandler</item>
+                <item name="can_capture" xsi:type="string">Magento\BraintreeTwo\Gateway\Config\CanVoidHandler</item>
             </argument>
         </arguments>
     </virtualType>