[SDL 0131] Test Scripts - Refactoring of Common modules

[theresalech]

Proposal: Test Scripts - Refactoring of Common modules

ATF test scripts use a lot of functions in commonly used modules, like:

• data accessors: file, database
• functions for tables: print, copy
• sequences:
  • create mobile session
  • register/activate mobile application
  • perform policy table update
• etc.

All these functionality are not tests artifacts but tools that tests use.

The purpose of this proposal is to clean up these common modules that everyone is able to use while creating ATF test scripts.

Review: smartdevicelink/sdl_evolution#377