Update diff_complexity.py

• Related issues: N/A
• Requested reviewers: @pihlajakuja

Reason why this change is needed

• N/A

Description of the change

• The complexity diff script was updated, the old regex breaks for automatically instrumented routines ([WMC_AUTO] contains non-word (\w) chars)
• Additional --dump_bsl and --dump_cut arguments to just parse the WMOPs+Memory data and dump it to the specified .csv file
• Verbose flag renamed to --detailed, which prints identical routines, routines unique to BSL and CUT, and a routine-level diff
  • If this is used with the --output argument, an additional _diff_detailed.csv is created which contains the routine level diff
  • --sort can also be used to sort by one of the WMOPs columns

Affected operating points

• N/A