sanitycheck: Add Renode support

The change adds an optional capability to kill process by PID in the
BinaryHandler. At the moment proc.terminate only closed the make
process, also closing the stdin/stdout, but this is impossible to detect
in .NET.

Signed-off-by: Dawid Wojciechowski <dwojciechowski@internships.antmicro.com>
Signed-off-by: Jan Kowalewski <jkowalewski@antmicro.com>
Signed-off-by: Piotr Zierhoffer <pzierhoffer@antmicro.com>