Ipv4 options

[compscidr]

Added required Ipv4 options re: https://datatracker.ietf.org/doc/html/rfc791, along with a way to process unsupported Ipv4 options with a length / size byte immediately after the (copied / type / class) byte.

Also added test coverage for these additional options.

[codecov]

Codecov Report

Attention: Patch coverage is 91.72932% with 33 lines in your changes missing coverage. Please review.

Project coverage is 94.91%. Comparing base (82f3966) to head (84ebb3b).

Files with missing lines	Patch %	Lines
...c/main/kotlin/com/jasonernst/knet/ip/Ipv4Header.kt	44.44%	6 Missing and 4 partials ⚠️
.../ip/options/Ipv4OptionLooseSourceAndRecordRoute.kt	88.88%	0 Missing and 5 partials ⚠️
...asonernst/knet/ip/options/Ipv4OptionRecordRoute.kt	88.88%	0 Missing and 5 partials ⚠️
...ip/options/Ipv4OptionStrictSourceAndRecordRoute.kt	88.88%	0 Missing and 5 partials ⚠️
...m/jasonernst/knet/ip/options/Ipv4OptionSecurity.kt	90.24%	3 Missing and 1 partial ⚠️
...om/jasonernst/knet/ip/options/Ipv4OptionUnknown.kt	92.59%	0 Missing and 2 partials ⚠️
...otlin/com/jasonernst/knet/ip/options/Ipv4Option.kt	98.38%	1 Missing ⚠️
...sonernst/knet/ip/options/Ipv4OptionSecurityType.kt	95.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main       #7      +/-   ##
============================================
+ Coverage     94.11%   94.91%   +0.80%     
- Complexity      126      219      +93     
============================================
  Files            22       35      +13     
  Lines           832     1220     +388     
  Branches         79      130      +51     
============================================
+ Hits            783     1158     +375     
+ Misses           35       27       -8     
- Partials         14       35      +21     

Flag	Coverage Δ
unittests	94.91% <91.72%> (+0.80%)	⬆️

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