Network macvlan and ipam support

[aksiksi]

Closes #15.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 78.68852% with 26 lines in your changes are missing coverage. Please review.

Project coverage is 71.80%. Comparing base (7fdd01c) to head (9c549ef).

Files	Patch %	Lines
compose.go	78.20%	13 Missing and 4 partials ⚠️
nix.go	79.54%	6 Missing and 3 partials ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #16      +/-   ##
==========================================
- Coverage   72.08%   71.80%   -0.28%     
==========================================
  Files           6        6              
  Lines         745      830      +85     
==========================================
+ Hits          537      596      +59     
- Misses        178      197      +19     
- Partials       30       37       +7     

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