Use webdriver manager

[ZheSun88]

This change is 

[CLAassistant]

All committers have signed the CLA.

[alvarezguille]

TestBench's Getting Started and Behavior-Driven Development docs should be updated. Could we update those right away or create a separate documentation ticket in testbench?

[ZheSun88]

took a quick look about the documentations Getting Started and behavior-Driven Development

if we use it for our official documentation, probably using a 3rd party plugin is not a good idea. So for a better demonstration, i close this PR and keep the old behavior.

[enver-haase]

In my view, we should leave the whole BDD story out of the equation. Great that we can even build such a stack on top of a block of jelly, but for the initial demonstration and "aha" effect we should focus on the TestbenchElement / PageObject story and how to roll your own.

[enver-haase]

Reviewable status: 0 of 3 files reviewed, all discussions resolved