* Add ability to configure the NotBefore property of certificates in role api

* Update index.html.md

* converting field to time.Duration

* setting default back to 30s

* renaming the parameter not_before_duration to differentiate between the NotBefore datetime on the cert

* Update description

* re-add performancestandycode for health api call

* update debounce timeout for namespace input on the auth page

* re-fetch cluster model on successful init

* 500ms for the debounce

* swap auth methods after successful api call so that the auth box doesn't jump around

* move list capability fetch to namespace component and don't use computed queryRecord to fetch it

* convert ed models to JSON so that they're unaffected by store unloading

* serialize with the id for the auth method models

* speed tests back up with different polling while loop

* login flash isn't in the same run loop so no longer needs withFlash

* Allow specifying role-default TTLs in AWS secret engine

* Add an acceptance test

* Add docs for AWS secret role-default TTLs

* Rename default_ttl to default_sts_ttl

* Return default_ttl as int64 instead of time.Duration

* Fix broken tests

The merge of #5383 broke the tests due to some changes in the test style
that didn't actually cause a git merge conflict. This updates the tests
to the new style.

* fix token expiration calculation

* move authenticate to an ember concurrency task

* don't show logged in nav while still on the auth route

* move current tests to integration folder, add unit test for expiration calculation

* fix auth form tests

This might be a typo, It says `A user may have a client token sent to her` instead it should say `A user may have a client token sent to them`

Minor grammar fix.

* The added method customTLSDial() creates a tls connection to the zookeeper backend when 'tls_enabled' is set to true in config

* Update to the document for TLS configuration that is  required to enable TLS connection to Zookeeper backend

* Minor formatting update

* Minor update to the description for example config

* As per review comments from @kenbreeman, additional property description indicating support for multiple Root CAs in a single file has been added

* minor formatting

* discuss ambient credentials in namespaces

* update aws cred chain description

* Add denylist check when filtering passthrough headers

* Minor comment update

* fix the top level pollling and use ember-concurrency

* make suggested changes

* Support Authorization Bearer as token header

* add requestAuth test

* remove spew debug output in test

* Add Authorization in CORS Allowed headers

* use const where applicable

* use less allocations in bearer token checking

* address PR comments on tests and apply last commit

* reorder error checking in a TestHandler_requestAuth

In addition to the specific permissions that are already mentioned, the project also needs the `iam.googleapis.com` API enabled, otherwise authenticating will fail with an error similar to:

```
Error authenticating: Error making API request.

URL: PUT https://localhost:8200/v1/auth/gcp/login
Code: 400. Errors:

* could not find service account key or Google Oauth cert with given 'kid' id
```