Path trace with reworked metrics

[davidv1992]

Based on #482

[codecov]

Codecov Report

Attention: Patch coverage is 69.45607% with 73 lines in your changes missing coverage. Please review.

Project coverage is 63.73%. Comparing base (e3dd106) to head (6cfcf17).
Report is 5 commits behind head on main.

Files	Patch %	Lines
statime-linux/src/metrics/format.rs	0.00%	48 Missing ⚠️
statime/src/port/master.rs	87.83%	9 Missing ⚠️
statime/src/port/bmca.rs	93.61%	6 Missing ⚠️
statime/src/ptp_instance.rs	0.00%	5 Missing ⚠️
statime-linux/src/main.rs	0.00%	3 Missing ⚠️
statime-linux/src/observer.rs	0.00%	1 Missing ⚠️
statime/src/datastructures/datasets/path_trace.rs	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #525      +/-   ##
==========================================
+ Coverage   62.89%   63.73%   +0.84%     
==========================================
  Files          59       60       +1     
  Lines        7780     8013     +233     
==========================================
+ Hits         4893     5107     +214     
- Misses       2887     2906      +19     

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