Business related packages module

surdeus 9d67accb9a fix: rebranding.		3 ヶ月前
inns	9d67accb9a fix: rebranding.	3 ヶ月前
go.mod	7f647616e2 fix: rebranding.	3 ヶ月前
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readme.md	7f647616e2 fix: rebranding.	3 ヶ月前

biz

The Golang module contains business related types and functions to keep them in place.