detect: factorize code for DetectSetupDirection

[catenacyber]

Link to ticket: https://redmine.openinfosecfoundation.org/issues/
https://redmine.openinfosecfoundation.org/issues/7665

Describe changes:

• detect: transactional rules allow filesize keyword

This means adding facility to allow non-sticky buffer keywords

• Moving DetectSetupDirection call site to SigParseOptions instead of in each keyword and use a new flag SIGMATCH_SUPPORT_DIR
• DetectSetupDirection now takes a pointer to a string, and may move the string forward to allow filesize: to_client, >100; so that DetectFilesizeSetup gets called with ">100"
• SigMatchAppendSMToList now sets only_tc and only_ts as DetectBufferSetActiveList already does

(3 commits may be better but debugging, I ended up squashing everything)

Now making transactional rules support other direction-ambiguous keywords should be one-liner like adding SIGMATCH_SUPPORT_DIR to sigmatch_table[DETECT_KEYWORD].flags

SV_BRANCH=OISF/suricata-verify#2453

#13120 with cast like str = (char *)"to_client_toto"; in unit tests to fix compile without warnings

[codecov]

Codecov Report

Attention: Patch coverage is 87.27273% with 14 lines in your changes missing coverage. Please review.

Project coverage is 83.04%. Comparing base (22abad7) to head (bfe4678).
Report is 61 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #13123   +/-   ##
=======================================
  Coverage   83.04%   83.04%           
=======================================
  Files         987      987           
  Lines      271868   271938   +70     
=======================================
+ Hits       225764   225835   +71     
+ Misses      46104    46103    -1     

Flag	Coverage Δ
fuzzcorpus	61.39% <37.31%> (-0.01%)	⬇️
livemode	18.96% <20.89%> (+<0.01%)	⬆️
pcap	44.78% <20.89%> (-0.02%)	⬇️
suricata-verify	64.75% <56.71%> (-0.02%)	⬇️
unittests	58.23% <82.72%> (+0.01%)	⬆️

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[suricata-qa]

WARNING:

field	baseline	test	%
	SURI_TLPR1_stats_chk
.uptime	627	652	103.99%

Pipeline 25945

[victorjulien]

Merged in #13179, thanks!