Feature request: Add min and max execution times to generated stats

[AlexanderRavenheart]

The current values (tsub, ttot, tavg) do not provide sufficient profiling data when dealing with temporary speed-ups or slowdowns.

My request is to add:

• a min field showing the fastest execution time (best case scenario).
• a max field showing the slowest execution time (worst case scenario).

This would provide valuable data for tracking which sections of code are most affected by drops/spikes in performance (cpu & memory consumption).