Dns over http2 5773 v8

[catenacyber]

Link to redmine ticket:
https://redmine.openinfosecfoundation.org/issues/5773

Describe changes:

• analyze DNS over HTTP2

SV_BRANCH=OISF/suricata-verify#1734

Draft to get feedback about approach...

#10733 with needed rebase
And also adding a commit to add a missing field in json schema for DNS cc @jasonish

TODO :

• Fix dns json schema and logging first (that is https://redmine.openinfosecfoundation.org/issues/6281 )
• Use config for dns logging...

Functionnaly, in terms of output :

• The flow will have doh2 as app_proto (and http2 as app_proto_orig)
• There are doh2 events that have both http2 and dns fields. dns logging is done like alerts, not like dns events...
• DNS and HTTP and HTTP2 signatures work on DOH2
• Signatures can be DOH2 specific. These signatures can combine http, http2 and dns keywords.
• DNS Frames do not work on DoH2

Memory management

• a HTTP2 tx can own 2 DNS tx (one to client, one to server)
• a HTTP2 tx stores the streamed DNS response content until it is complete before parsing it (limiting to U16_MAX bytes)

API

• There is a new DOH2 app-layer protocol which resorts to HTTP2 for most of the things
• HTTP2 parsing discovering DOH2 changes the app_proto to DOH2, doh2 can be enabled or disabled in suricata.yaml config
• There are more alproto "comparison" functions
• Every DNS keyword needs to check the flow alproto to change the transaction
• Every DNS/HTTP keyword is automatically registered for DOH2 (hacking DetectAppLayerMpmRegister2...)

[codecov]

Codecov Report

Attention: Patch coverage is 89.94413% with 36 lines in your changes are missing coverage. Please review.

Project coverage is 82.73%. Comparing base (2b4e102) to head (bbc0a35).

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10898      +/-   ##
==========================================
+ Coverage   77.64%   82.73%   +5.09%     
==========================================
  Files         922      922              
  Lines      247806   248064     +258     
==========================================
+ Hits       192400   205243   +12843     
+ Misses      55406    42821   -12585     

Flag	Coverage Δ
fuzzcorpus	64.26% <68.15%> (?)
suricata-verify	61.91% <82.12%> (-0.51%)	⬇️
unittests	62.17% <33.24%> (-0.03%)	⬇️

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

[suricata-qa]

ERROR:

ERROR: QA failed on SURI_TLPW1_files_sha256.

Pipeline 20226

[catenacyber]

Rebased in #10984