[WIP] BSP-OT: Sparse transport plans between discrete measures in loglinear time

[dcoeurjo]

Initial fork and PR. (wip)

Types of changes

Motivation and context / Related issue

How has this been tested (if it applies)

PR checklist

• I have read the CONTRIBUTING document.
• The documentation is up-to-date with the changes I made (check build artifacts).
• All tests passed, and additional code has been covered with new tests.
• I have added the PR and Issue fix to the RELEASES.md file.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.15%. Comparing base (5a7d086) to head (1ae8472).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #768   +/-   ##
=======================================
  Coverage   97.15%   97.15%           
=======================================
  Files         107      107           
  Lines       21877    21877           
=======================================
  Hits        21254    21254           
  Misses        623      623           

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.