[SDL 0121] ATF Facade

[theresalech]

Proposal: ATF Facade

This proposal describes unified interface for ATF (Automated Test Framework) - ATF Facade. ATF should provide unified and flexible interface for creation test scripts to perform checks of SDL functionality.

Main ATF Facade purposes:

• Simplify access to ATF features for test scripts
• Separate test scripts from ATF
• Provide well-structured intuitive interface of ATF for test scripts
• Unify way of using ATF for creating automated tests
• Create single point of ATF features documentation
• Provide ability to create more human-readable tests

Review: smartdevicelink/sdl_evolution#363