v7.0.0: migrated build procedure to Go binary

What’s Changed

• Added Playwright 1.5.1 images (#301) @vania-pooh
• Added Opera 71.0 image information (#299) @vania-pooh
• Added Chrome 86.0 image information (#298) @vania-pooh
• Added Firefox 81.0 image information (#296) @vania-pooh
• Fixing broken command line in Android entrypoint.sh (#295) @vania-pooh
• Docs fixes (#294) @vania-pooh
• Added Playwright images table (#293) @vania-pooh
• Added new images for Chrome Mobile (fixes #274) (#292) @vania-pooh
• Moved development documentation to ASCIIDoc (#291) @vania-pooh
• Fixed YandexDriver version selection + refactoring (#283) @ruescar
• Need to copy images for docs (#290) @vania-pooh
• Renamed everything to aerokube.com/images (#289) @vania-pooh
• Correct commands for building Android 9+ images (#287) @vania-pooh
• Added Android 11.0 images support (#286) @vania-pooh
• Changed default Appium version to 1.18.1 (#285) @vania-pooh
• Fixed tests run for Yandex browser (#282) @ruescar
• Fixed OperaDriver download (#281) @ruescar
• Fixed ChromeDriver version selection (#280) @ruescar
• Fixed tests run for Firefox browser (#279) @ruescar
• Correct operadriver source path in Dockerfile (#277) @vania-pooh
• Added release drafter (fixes #275) (#276) @vania-pooh
• fixed build docker image with yandex-browser (#273) @epilepsis
• Fixed path in automate_android.sh (#272) @vania-pooh
• Openshift permissions fix (#271) @vania-pooh
• Fix for #262 (#263) @alfeg
• Bump Golang to 1.15 (#270) @vania-pooh
• Completely migrated to Golang binary (#268) @vania-pooh
• Fixed delete session. (#267) @aandryashin
• Change port. (#266) @aandryashin
• Change path. (#265) @aandryashin
• Add barrier binary. (#264) @aandryashin