Re #21 - Add matchall filter type

[sophacles]

This tc filter matches all packets that encounter it.

[wllenyj]

Thanks,
Please fix the ci fail.

[codecov]

Codecov Report

Merging #22 (bcddc75) into main (62d2411) will increase coverage by 0.29%.
The diff coverage is 0.00%.

❗ Current head bcddc75 differs from pull request most recent head cb90699. Consider uploading reports for the commit cb90699 to get more accurate results

@@            Coverage Diff             @@
##             main      #22      +/-   ##
==========================================
+ Coverage   45.83%   46.13%   +0.29%     
==========================================
  Files          73       73              
  Lines        5969     5931      -38     
==========================================
  Hits         2736     2736              
+ Misses       3233     3195      -38     

Impacted Files	Coverage Δ
src/rtnl/tc/nlas/filter/matchall.rs	0.00% <0.00%> (ø)
src/rtnl/tc/nlas/options.rs	62.85% <0.00%> (-13.01%)	⬇️

... and 2 files with indirect coverage changes

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[sophacles]

Hi, I've rebased and fixed the formatting errors, will pay attention to the next CI run for additonal issues.

[wllenyj]

@cathay4t Do you have any comments?

[cathay4t]

Please remove TCA_MATCHALL_PAD and TCA_MATCHALL_MAX. They are not used in this PR

[sophacles]

I removed them. In the same file, TCA_MIRRED_PAD and TCA_MIRRED_MAX follow the same pattern, should those be removed too? (I can make a separate PR to do that).

amended

[cathay4t]

@sophacles Thanks for the patch. I have amended the patch to hold Signed-off-by: in git commit message. Next time, please use git commit --signoff.