partrt: Added verbose messages for test_partition.py
partrt: Added verbose messages for test_partition.py

If verbose is enabled, these messages have been added:
- Test case start execution
- Shell commands executed
- Result of get_task_info

Note: There is a known issue with false fails where the test reports that
      a process has wrong affinity. The problem is that the test is measuring
      a tramponline process, not the process executing in the RT partition.
      This is somewhat non-trivial to fix, and has therefore not been fixed
      yet.

Signed-off-by: Mats Liljegren <799101270ace278bc742fe182d51d71f5483f6b7@enea.com>
Signed-off-by: Andreas Sundström <d46f150aeee42408c7b1faf81ec84f9e6bed9f76@enea.com>

OpenEneaLinux/rt-tools,OpenEneaLinux/rt-tools,OpenEneaLinux/rt-tools