make compatible with pyranges v1 module renamed to pyranges1

[marco-mariotti]

After this fix, pyranges tests pass with:
-pyranges v0 0.1.5
-pyranges v1 1.1.9
-pyranges v1 preview after renaming module = https://github.com/d-laub/pyranges_1.x/tree/pyranges1-migration

BUT pyrle built-in tests don't pass. Not even with old versions, though. I think we just neglected them for a long time

[marco-mariotti]

@endrebak I will not merge this myself.
When you do, upload to pip

[endrebak]

It seems to break. Why? I think the incorrect overlap edge cases in ruranges are much more important to fix than this.

If it is just pyrle that does not work I think we can remove those tests.

[marco-mariotti]

Hi @endrebak , the tests were broken before this PR. I barely changed anything other than import statements and some logging. Now: I push this merge and upload to pip to have tests working in renamed pyranges1. I leave the related issue open waiting for pyrle own tests to be fixed (or solve the problem in other ways).
Hopefully you're ok with this, otherwise we can always roll back, bump and reupload to pip

[endrebak]

♥️👍