Ax 1.1.1

Bug fixes

• Correctly filter out observations from Abandoned trials/arms during candidate
  generation (#4155)
• Handle scalarized objectives in ResultsAnalysis (#4193)
• Fix bug in polytope sampler when generating more than one candidate in a batch (#4244)

Other changes

• Transition from setup.py to pyproject.toml for builds, modernizing Ax's build
  configuration and bringing it in compliance with PEP 518 and PEP 621 (#4100)
• Add py.typed file, which allows typecheckers like Pyre, mypy, etc. to see Ax's types
  and avoid a TypeStub error when importing Ax (#4139)
• Improve legibility of ArmEffectPlot by modifying legend and x-axis labels (#4220,
  #4243)
• Address logspew in OneHotEncoder transform (#4232)