Smtp server detection 1125 v5

[catenacyber]

Link to redmine ticket: https://redmine.openinfosecfoundation.org/issues/1125

Describe changes:

• smtp : adds server side detection
• ftp : adds server side detection

The most special trick is that the (server) probing parser waits for the client side to have seen some data to take a definitive positive decision. So that If it looks like a SMTP server (it could be a FTP server), let's see if the client looks like SMTP or FTP or something unknown...

suricata-verify-pr: 866

Modifies #7599 by rebase and removing one unneeded many1 as it was always one and only one

[codecov[bot]]

Codecov Report

Merging #7664 (98f810f) into master (61f9f0d) will increase coverage by 0.11%. The diff coverage is 88.09%.

@@            Coverage Diff             @@
##           master    #7664      +/-   ##
==========================================
+ Coverage   75.78%   75.90%   +0.11%     
==========================================
  Files         659      659              
  Lines      185660   185684      +24     
==========================================
+ Hits       140706   140940     +234     
+ Misses      44954    44744     -210     

Flag	Coverage Δ
fuzzcorpus	60.54% <88.09%> (+0.38%)	:arrow_up:
suricata-verify	52.59% <80.00%> (+0.04%)	:arrow_up:
unittests	60.71% <15.78%> (-0.02%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

[suricata-qa]

ERROR:

ERROR: QA failed on tlpw1_files_sha256.

Pipeline 8428

[victorjulien]

QA shows quite a difference in extracted files and hashes again. @catenacyber and @ct0br0 can you look into why?

[catenacyber]

Replaced by https://github.com/OISF/suricata/pull/8119 to get actualized results