types: add __repr__ and __eq__ support to Range and Location

[perrinjerome]

Description

This helps debugging and simplify testing, where we can just assert that ranges or locations are equals.

Code review checklist (for code reviewer to complete)

• Pull request represents a single change (i.e. not fixing disparate/unrelated things in a single PR)
• Title summarizes what is changing
• Commit messages are meaningful (see this for details)
• Tests have been included and/or updated, as appropriate
• Docstrings have been included and/or updated, as appropriate
• Standalone docs have been updated accordingly
• CONTRIBUTORS.md was updated, as appropriate
• Changelog has been updated, as needed (see CHANGELOG.md)

[danixeee]

@perrinjerome Great, thank you. Could you just update CHANGELOG.md and CONTRIBUTORS.md files, so I can approve / merge this one?

[perrinjerome]

Thanks @danixeee ! I added commits to update changelog and contributors.

[perrinjerome]

It seems build failed on AppVeyor, there's "Build execution time has reached the maximum allowed time for your plan (60 minutes).", maybe we should retry the build ? ( I cannot do this )

[danixeee]

Looks good