Closes #9073: Remote data support for config contexts (#11692)

* WIP

* Add bulk sync view for config contexts

* Introduce 'sync' permission for synced data models

* Docs & cleanup

* Remove unused method

* Add a REST API endpoint to synchronize config context data

netbox/core/models/data.py

@@ -1,5 +1,6 @@
 import logging
 import os
+import yaml
 from fnmatch import fnmatchcase
 from urllib.parse import urlparse
 
@@ -283,6 +284,13 @@ class DataFile(ChangeLoggingMixin, models.Model):
         except UnicodeDecodeError:
             return None
 
+    def get_data(self):
+        """
+        Attempt to read the file data as JSON/YAML and return a native Python object.
+        """
+        # TODO: Something more robust
+        return yaml.safe_load(self.data_as_string)
+
     def refresh_from_disk(self, source_root):
         """
         Update instance attributes from the file on disk. Returns True if any attribute