Bump src/cloud_controller_ng:

Alex Suraci (2):
      Delete model.png
      Delete ilia_tour

David Julia and Ian Lesperance (1):
      Verify organization can see plan for instance

David Julia and Matt Royal (8):
      Change how extra_attributes are declared
      Don't set a default value for unique_id
      Service Plans track whether they are bindable
      Revert "Service Plans track whether they are bindable"
      Revert "Don't set a default value for unique_id"
      Don't set a default value for unique_id
      Services can be marked as unbindable
      Whitespace changes

Ian Lesperance and Matthew Horan (1):
      Change user provided service label

Ian Lesperance and Ryan Tang (1):
      Rename "provided" instances to "user provided"

Jimmy Da and Ryan Tang (3):
      Validate space guid on service instance creation.
      Refactor service_plan_visibilities and service_instance api
      Bump errors submodule

Matt Royal and Matthew Horan (2):
      Fix service bindable flag migration for MySQL
      User sees error when binding unbindable service