Detect count 5044 v3.1

[catenacyber]

Link to ticket: https://redmine.openinfosecfoundation.org/issues/
https://redmine.openinfosecfoundation.org/issues/5044

Describe changes:

• adds a count option to multi-buffers, behaving like a keyword but syntax is email.received: count <3; instead of email.received; count: <3;
• adds other modes to multi-buffers like all, all_or_absent, nb`, and precise indexing

SV_BRANCH=OISF/suricata-verify#2634

Draft :

• Feedback about general design ?

TODOs :

• update doc if design is agreed
• add support for all multi-buf keywords
• add more tests
• rustfmt removes one line in mod.rs

[catenacyber]

There are

• 2 preparatory commits
• The big/interesting commit for design
• a last commit adding the support for one multi-buffer keyword email.received (to be done for every multi-buffer keyword once design is ok)

[codecov]

Codecov Report

❌ Patch coverage is 68.33333% with 76 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.19%. Comparing base (c61f1cb) to head (70205bc).
⚠️ Report is 54 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #14279      +/-   ##
==========================================
- Coverage   84.21%   84.19%   -0.03%     
==========================================
  Files        1013     1014       +1     
  Lines      262126   262324     +198     
==========================================
+ Hits       220752   220854     +102     
- Misses      41374    41470      +96     

Flag	Coverage Δ
fuzzcorpus	63.27% <21.79%> (-0.07%)	⬇️
livemode	18.69% <5.55%> (-0.03%)	⬇️
pcap	44.55% <10.68%> (-0.05%)	⬇️
suricata-verify	64.89% <68.10%> (+<0.01%)	⬆️
unittests	59.20% <18.06%> (-0.03%)	⬇️

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[suricata-qa]

Information: QA ran without warnings.

Pipeline = 28375

[catenacyber]

Rebased in #14345