Implement link filtering

[hellt]

fix #1546

• add tests

[codecov]

Codecov Report

Merging #1549 (c65e0a6) into main (ec16490) will increase coverage by 0.80%.
The diff coverage is 65.30%.

❗ Current head c65e0a6 differs from pull request most recent head b4f7f93. Consider uploading reports for the commit b4f7f93 to get more accurate results

@@            Coverage Diff             @@
##             main    #1549      +/-   ##
==========================================
+ Coverage   47.85%   48.66%   +0.80%     
==========================================
  Files         131      132       +1     
  Lines       12621    12665      +44     
==========================================
+ Hits         6040     6163     +123     
+ Misses       5852     5801      -51     
+ Partials      729      701      -28     

Files Changed	Coverage Δ
links/link_macvlan.go	10.29% <0.00%> (-0.40%)	⬇️
links/link_host.go	61.53% <42.85%> (-0.97%)	⬇️
links/link_mgmt-net.go	65.11% <42.85%> (-1.96%)	⬇️
clab/clab.go	77.65% <100.00%> (+0.30%)	⬆️
links/link.go	61.61% <100.00%> (+2.04%)	⬆️
links/link_brief.go	79.16% <100.00%> (ø)
links/link_veth.go	77.27% <100.00%> (+1.08%)	⬆️
runtime/podman/util.go	77.77% <100.00%> (-0.73%)	⬇️

... and 8 files with indirect coverage changes