feat(simulator): Add StopWhenSendLineMatch trigger

[msbrogli]

Motivation

This trigger gives control to stop the simulator when a given message is sent from one node to another.

Acceptance Criteria

1. Add StopWhenSendLineMatch trigger which monitors a connection and stops the simulator when a message matches a regex pattern.

Checklist

• If you are requesting a merge into master, confirm this code is production-ready and can be included in future releases as soon as it gets merged

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (e09351c) 85.26% compared to head (2cc841b) 85.32%.
Report is 4 commits behind head on master.

❗ Current head 2cc841b differs from pull request most recent head 7b6eb34. Consider uploading reports for the commit 7b6eb34 to get more accurate results

Files	Patch %	Lines
hathor/simulator/trigger.py	93.75%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #847      +/-   ##
==========================================
+ Coverage   85.26%   85.32%   +0.05%     
==========================================
  Files         281      281              
  Lines       22363    22380      +17     
  Branches     3388     3390       +2     
==========================================
+ Hits        19068    19095      +27     
+ Misses       2608     2604       -4     
+ Partials      687      681       -6     

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