v1.0.0 Release

[scaramallion]

• Confirm updated wheels work
• Fix up that missing test coverage
• Switch wheel building to only be on package release publishing

[scaramallion]

Release checklist

• update the version in _version.py to release
• create a new GitHub release
• Download wheels from actions and upload to GitHub release page
• publish on PyPi
  • upload wheels to testing.pypi.org: twine upload -r pypitest wheels/*
    • create a new virtualenv and install: pip install -i https://test.pypi.org/simple/ pylibjpeg-openjpeg
    • install optional packages: pip install pytest pydicom git+https://github.com/pydicom/pylibjpeg-data
    • run unit tests: python -c "import pytest; import openjpeg; pytest.main(['--pyargs', 'openjpeg.tests'])"
    • test release is good
  • upload to pypi.org: twine upload wheels/*
    • create a new virtualenv and install: pip install pylibjpeg-openjpeg pydicom pytest git+https://github.com/pydicom/pylibjpeg-data
    • run unit tests
    • release is good

Post-release checklist

• update the version in _version.py in master to next development version (major.minor.0.dev0)