[Testcases-TSWConfig] Add the TSWConfig design, as well as the python code and edit_testcases adaptations.
[Testcases-TSWConfig] Change the edit_testcases' accept method to 'acceptTestcase()'.
[Testcases-TSWConfig] Add the 'command_print' path on the path configs, as well as a method to get the interface value with this path.
[Testcases-TSWConfig] Fix the SendCLI.py name to SendCLI_v2.py.