[Android][iOS]Awesome tips

Headless simulators

Appium(with WDA) can run headless simulators isHeadless against Xcode9+.
Awesome: https://github.com/appium/appium-xcuitest-driver/pull/472/files

composer, swarmer and mainframer

Replace Spoon for Espresso.

• https://github.com/gojuno/composer
• https://github.com/gojuno/swarmer
• https://github.com/gojuno/mainframer