websocket: implement over HTTP2

[catenacyber]

Link to ticket: https://redmine.openinfosecfoundation.org/issues/6729

Describe changes:

• draft websocket over http2

TODOs:

• Agree on the design and output
• SV test
• doc update
• commit segmentation and messages

Tested so far with
suricata -c suricata.yaml -k none -r wss_h2.pcap -S ../suricata-verify/tests/websocket/test.rules -l log

#15675 with rebase, squash, and some review nits implemented

[codecov]

Codecov Report

❌ Patch coverage is 52.08333% with 46 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.93%. Comparing base (09f0851) to head (c42e568).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15737      +/-   ##
==========================================
- Coverage   82.96%   82.93%   -0.04%     
==========================================
  Files        1003     1003              
  Lines      275031   275093      +62     
==========================================
- Hits       228192   228137      -55     
- Misses      46839    46956     +117     

Flag	Coverage Δ
fuzzcorpus	61.46% <52.08%> (-0.02%)	⬇️
livemode	18.34% <0.00%> (-0.04%)	⬇️
netns	22.72% <1.04%> (-0.03%)	⬇️
pcap	45.35% <50.00%> (-0.04%)	⬇️
suricata-verify	66.89% <52.08%> (-0.06%)	⬇️
unittests	58.44% <5.20%> (-0.02%)	⬇️

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[suricata-qa]

WARNING:

field	baseline	test	%
	SURI_TLPR1_stats_chk
.app_layer.flow.ftp_data	604	677	112.09%
.app_layer.error.ftp.parser	17	0	-

Pipeline = 32275

[suricata-qa]

WARNING:

field	baseline	test	%
	SURI_TLPR1_stats_chk
.app_layer.flow.ftp_data	604	677	112.09%
.app_layer.error.ftp.parser	17	0	-

Pipeline = 32275