Send headers to hook receive

Author: lasley

base_web_hook/models/web_hook.py

@@ -118,4 +118,4 @@ def receive(self, data=None, data_string=None, headers=None):
                 'An invalid token was received.'
             ))
 
-        return self.interface.receive(data)
+        return self.interface.receive(data, headers)

base_web_hook/models/web_hook_adapter.py

@@ -20,14 +20,15 @@ class WebHookAdapter(models.AbstractModel):
     )
 
     @api.multi
-    def receive(self, data):
+    def receive(self, data, headers):
         """This should be overridden by inherited models to receive web hooks.
 
         It can expect a singleton, although can ``self.ensure_one()`` if
         desired.
 
         Args:
             data (dict): Data that was received with the hook.
+            headers (dict): Headers that were received with the request.
 
         Returns:
             mixed: A JSON serializable return, or ``None``.