* Replace deprecated terms in AWS Auth
This PR is part of an effort to remove non-inclusive language throughout
Vault. The AWS Auth backend uses the "whitelist" and "blacklist" term
extensively, and these are the focus of the PR:
* Add new API endpoints that use the preferred terminology, while
deprecating the old endpoints. These endpoints offer identical
functionality and are basically aliases. This is the only functional
change in the PR except for terms in error messages.
* Replace "whitelist" -> "access list", "blacklist" -> "deny list" in
variable names, comments, etc.
Note that storage locations were *not* changed at this time, as that is
a more complex process involving versioning that we may tackle in a future
revision. We have reduced the occurrences of non-inclusive language,
however.
Reviewers should be sure to "Ignore Whitespace" in diffs, especially for
the tests, which were basically indented one level as part of looping
over the tests with both the old and new names.