Convert the napatech packet source to a plugin

[jlucovsky]

Continuation of #11651

This PR contains the changes to distribute and build the Napatech source modules as a "capture plugin".

Describe changes:

• Converted the Napatech source modules to be suitable for a capture plugin
• User-level upgrade documentation

Updates:

• Doc update -- use "Napatech" instead of "NAPATECH"
• Revert unnecessary change to decode module name -- NapatechDecode.
• Combine like commits (remove unnecessary fixup commit)
• Doc tweaks per review feedback

Provide values to any of the below to override the defaults.

• To use an LibHTP, Suricata-Verify or Suricata-Update pull request, link to the pull request in the respective _BRANCH variable.
• Leave unused overrides blank or remove.

SV_REPO= SV_BRANCH= SU_REPO= SU_BRANCH= LIBHTP_REPO= LIBHTP_BRANCH=

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 82.61%. Comparing base (304271e) to head (37d9979). Report is 12 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #11657   +/-   ##
=======================================
  Coverage   82.61%   82.61%           
=======================================
  Files         919      917    -2     
  Lines      248997   248970   -27     
=======================================
- Hits       205717   205696   -21     
+ Misses      43280    43274    -6     

Flag	Coverage Δ
fuzzcorpus	60.88% <ø> (+<0.01%)	:arrow_up:
livemode	18.65% <ø> (-0.01%)	:arrow_down:
pcap	44.03% <ø> (-0.12%)	:arrow_down:
suricata-verify	61.89% <ø> (-0.01%)	:arrow_down:
unittests	59.00% <ø> (-0.01%)	:arrow_down:

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

[suricata-qa]

Information: QA ran without warnings.

Pipeline 22245

[jlucovsky]

Continued in #11687