feat: registries groups

[42atomys]

Description

After few feedback on v1.0.0-rc1, a solution for grouping registries and have built-ins groups are requested, this pull request implement the logic of group, keep it simple as possible to prevent add complexity for nothing.

Changes

• Add AddGroups on Defaulthandler
• Add WithGroups handler option
• Add group folder to hold all built-ins group and add two all and hermetic

Resolves #73 #49

Checklist

• I have read the CONTRIBUTING.md document.
• My code follows the code style of this project.
• I have added tests to cover my changes.
• All new and existing tests passed.
• I have updated the documentation accordingly.
• This change requires a change to the documentation on the website.

[42atomys]

Self review : add a pesticide helper to test a group

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Files with missing lines	Coverage Δ
group.go	100.0% <100.0%> (ø)
group/all/all.go	100.0% <100.0%> (ø)
group/hermetic/hermetic.go	100.0% <100.0%> (ø)
handler.go	100.0% <100.0%> (ø)
pesticide/group_test_helpers.go	100.0% <100.0%> (ø)
pesticide/template_test_helpers.go	100.0% <ø> (ø)

... and 17 files with indirect coverage changes

[ccoVeille]

👍