Add support for locators into driver abstraction

[brad-decker]

supersedes #10801

Adds support for inline locators in driver element matcher methods, instead of using Selenium's By abstraction. In the interim, they ALSO accept the latter. Additional PRs will be set up to convert usages to remove the usage of By

[metamaskbot]

Builds ready [05c3797]

• builds: chrome, firefox, opera
• bundle viz: background, ui, inpage, contentscript, ui-libs, bg-libs, phishing-detect
• build viz: Build System
• code coverage: Report
• storybook: Storybook
• all artifacts

Page Load Metrics (542 ± 41 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	43	67	52	8	4
		domContentLoaded	324	638	541	86	41
		load	325	640	542	86	41
		domInteractive	324	638	541	85	41

[Gudahtt]

LGTM!