v1.2.0: Webdriver mode and other updates

Since now, porchmark now can attack your websites from remote webdriver!
All options now can be stored in config file.
Viewport sizes and user-agent value can be overwritten from config too.
Added configurable timeouts for checks.
Aaaand, now webpage addersses are scrolling inside theis cells. Just because.

Big update!

• Completely rewritten in typescript
• Removed unnecessary metrics
• Showing diffs only where it makes sense
• Added ANOVA p-value to each measurement
• Displaying how much tests are running on each site
• Various bugfixes