Improve parsing options support.

[Dimi1010]

This PR improves the parsing options by adding deferred parsing and incremental parsing.

The parsing procedure has been extracted from the setRawData procedure and placed into parsePacket.
The new procedure can be called repeatedly on the same packet with different options and will incrementally parse the packet.

The packet parsing options have been grouped into the struct ParseOptions for better method readability.
The PR introduces new constructors and overloads to Packet and setRawPacket that take the parse options structure or a NoParseTag if parsing is to be deferred.

[codecov]

Codecov Report

❌ Patch coverage is 92.15686% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.69%. Comparing base (44e9085) to head (00211fd).

Files with missing lines	Patch %	Lines
Packet++/src/Packet.cpp	87.50%	10 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #2042      +/-   ##
==========================================
+ Coverage   83.11%   83.69%   +0.58%     
==========================================
  Files         312      312              
  Lines       55381    55569     +188     
  Branches    11725    12007     +282     
==========================================
+ Hits        46031    46511     +480     
+ Misses       8424     7866     -558     
- Partials      926     1192     +266     

Flag	Coverage Δ
alpine320	76.21% <86.59%> (?)
fedora42	75.98% <86.51%> (?)
macos-14	81.77% <89.62%> (+0.01%)	⬆️
macos-15	81.76% <89.23%> (+0.01%)	⬆️
mingw32	69.94% <79.03%> (-0.05%)	⬇️
mingw64	69.95% <79.03%> (+0.03%)	⬆️
npcap	?
rhel94	75.56% <86.51%> (?)
ubuntu2004	59.55% <69.60%> (?)
ubuntu2004-zstd	59.65% <69.60%> (?)
ubuntu2204	75.52% <86.51%> (?)
ubuntu2204-icpx	58.48% <81.48%> (+0.05%)	⬆️
ubuntu2404	75.87% <86.51%> (+3.32%)	⬆️
ubuntu2404-arm64	75.88% <86.31%> (?)
unittest	83.69% <92.15%> (+0.58%)	⬆️
windows-2022	85.51% <86.90%> (+0.09%)	⬆️
windows-2025	85.55% <86.90%> (+0.10%)	⬆️
winpcap	85.55% <86.90%> (-0.10%)	⬇️
xdp	52.19% <86.51%> (+0.04%)	⬆️

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