add registry.Repo("foo")

[imjasonh]

reg, _ := name.NewRegistry("foo.io")
repo := reg.Repo("bar").Tag("v3") // -> foo.io/bar:v3

[codecov-commenter]

Codecov Report

Merging #1671 (0785c40) into main (58bd35b) will increase coverage by 0.91%.
The diff coverage is 0.00%.

❗ Current head 0785c40 differs from pull request most recent head 666716a. Consider uploading reports for the commit 666716a to get more accurate results

@@            Coverage Diff             @@
##             main    #1671      +/-   ##
==========================================
+ Coverage   71.89%   72.80%   +0.91%     
==========================================
  Files         120      121       +1     
  Lines        9833     9631     -202     
==========================================
- Hits         7069     7012      -57     
+ Misses       2046     1941     -105     
+ Partials      718      678      -40     

Impacted Files	Coverage Δ
pkg/name/registry.go	97.05% <0.00%> (-2.95%)	⬇️

... and 19 files with indirect coverage changes