CLC-4582: Selenium test for final exams UI

https://jira.ets.berkeley.edu/jira/browse/CLC-4582

Another UID-driven test that verifies the rendering of final exam info on both the main My Academics page and the semester page.  In addition, the test verifies that the Google Maps links open in a new window successfully.  This could prove problematic with too many UIDs, as Google tries to detect robotic requests.  However, with a small enough number of UIDs and a correspondingly low number of maps requests, Google seems not to notice.

Finally, the test also verifies that exam data exists for at least one of the UIDs.  This will assist QA in knowing when final exam info comes and goes, though it will need to be quarantined when no exam info is expected.