Update tests to setup webdriver stuff in `jest-environment` and re-use one browser session instead of spawning one for each webdriver call to prevent creating too many BrowserStack sessions.
* Break out client-navigation and rendering
test from basic test
* Try with parallelism dialed back to 3
* Update jest-junit for more compatible timings in CircleCI
* Bump to test timings
* Use filepath for suitename in jest-junit
* Store reports as artifacts
* Try using classname for timings
* Bump
* Remove reports from artifacts
* Format circleci config
* Tweak configuration into multiple steps
* Persist whole repo to workspace
* Attach workspace for tests
* Run tests in parallelism x4
* Test circleci parallelism
* parallel x6 times
* Save test timing
* Use env var instead
* run in ci mode
* test speed
