Update SDKs to utilize @percy/cli

[wwilsman]

This issue aims to be a place where we can track which SDKs need to be worked on and which SDKs are ready to go.

Completed & released

100% released packages (docs, example apps, & stable major release cut)

• [x] percy-selenium-python
• [x] @percy/puppeteer
• [X] @percy/webdriverio
• [x] @percy/protractor
• [X] @percy/nightmare
• [X] @percy/nightwatch
• [x] @percy/selenium-webdriver
• [x] @percy/testcafe
• [x] @percy/cypress
• [x] @percy/ember
• [x] percy-selenium-java
• [x] percy-capybara
• [x] @percy/storybook
• [x] gatsby-plugin-percy

Code migration completed

These package have betas released

• N/A

WIP

[Robdel12]

Hey @wwilsman, you wanna do the honors on this issue?!