Update company preference settings for an application.

This API is only usable with an OAuth token and only by the current user or admin.

• Add or update a setting identified by key with value.
• Operation and field may optionally be specified when updating Map type settings.
• Field specifies the key of the setting Map to update.
• Operation may be one of:
  • ADD: Add or update an existing field of the settings Map.
  • UPDATE: Update an existing field of the settings Map and return an error if the field does not exist.
  • REMOVE: Remove the field from the settings Map.