Twister: Add integration with renode-test

Add support for calling the `renode-test` command from west and twister.
Enable running Robot Framework tests suites in Renode.

Signed-off-by: Michał Szprejda <mszprejda@antmicro.com>
Signed-off-by: Mateusz Hołenko <mholenko@antmicro.com>
8 files changed