* Extract method for `manual_fields` processing
Allows reuse of logic to replace Field instances in a field list by `Field.name`.
Adds a utility function for the logic plus a wrapper method on `AutoSchema`.
Closes#5632
* Manual fields suggestions (#2)
* Use OrderedDict in inspectors
* Move empty check to 'update_fields()'
* Make 'update_fields()' an AutoSchema staticmethod
* Add 'AutoSchema.get_manual_fields()'
* Conform '.get_manual_fields()' to other methods
* Add test for update_fields
* Make sure `manual_fields` is a list.
(As documented to be)
* Add docs for new AutoSchema methods.
* `get_manual_fields`
* `update_fields`
* Add release notes for PR.
a0cdba6277