Add automatic test for the ebpf_tracing.cmd

[gtrevi]

Describe the feature you'd like supported

Add an automatic test for ebpf_tracing.cmd script, as per suggestion on #2357

Proposed solution

Run the script with its supported scenarios, and check for the expected the outputs:

# Test #1
ebpf_tracing.cmd start "C:\_ebpf\logs"
- Tracing is started in the log folder, at least one log file is created

# Test #2 - The script should be left running for 'logman_period', eventually changing it artificially
ebpf_tracing.cmd periodic "C:\_ebpf\logs" 
 - An XML file is created for the rundown, in the committed directory
 - ETL files are moved into the committed directory, except 'num_etl_files_to_keep'
 - All files older than 'files_max_age_days' are deleted, eventually changing it artificially
 
# Test #3
ebpf_tracing.cmd stop "C:\_ebpf\logs" 
-  Log folder is deleted

Additional context

No response